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Production of Cold-Bonded Briquettes
Cold-bonded briquetting is an energy-efficient agglomeration process that forms fine metallurgical and mineral materials into dense briquettes at room temperature without high-temperature sintering. It starts with raw material preparation, including crushing, screening, and proportioning iron ore fines, dust, mill scale, or other recycled fines. Next, the prepared materials are thoroughly mixed with a specialized cold binder and water in a high-efficiency mixer to ensure uniform distribution.
The blended mixture is then fed into a roll briquetting press, where high pressure compacts it into shaped green briquettes. These green briquettes go through low-temperature drying or natural curing to enhance strength, drop resistance, and thermal stability. The final products feature uniform size, high mechanical strength, and good metallurgical performance, suitable for blast furnaces, converters, and smelting systems.
This technology cuts energy use and carbon emissions greatly, enables recycling of industrial dust and sludge, reduces waste and transport costs, and supports green and circular production in metallurgy and mining.

Perforated Mesh for Oil, Fuel, Industrial Filter Elements

Custom 304/316 stainless steel and galvanized perforated metal sheet serves as core structural support for industrial filtration systems. It works as inner skeleton and outer protection for filter cartridges, filter tubes and pleated filter elements, firmly supporting filter media and preventing collapse or deformation during long-term continuous filtration.

Material Options
304 Stainless Steel: Standard rust-proof grade, widely applied in water treatment and oil filtration.
316 Stainless Steel: Enhanced acid and alkali corrosion resistance, ideal for chemical and pharmaceutical filtration.
Galvanized Steel: Cost-effective option for low-corrosion liquid and gas filtration scenarios.

Key Advantages
Featuring high mechanical strength, the sheet resists bending and deformation under fluid pressure.
Precisely punched uniform holes ensure stable flow rate and excellent permeability.
Smooth, burr-free surface protects filter media from scratching and damage.
Multiple surface treatments are available, including polished stainless steel and hot-dip galvanized finish.
All core parameters are fully customizable, covering hole shape, hole size, plate thickness and overall dimensions.

Customization Range
Available hole shapes include round, square, oval and custom patterns.
Plate thickness ranges from 0.3mm to 2mm, with hole diameter from 0.5mm to 10mm.
All sheet lengths and widths can be customized, and flat sheets can be rolled into tubular filter cylinders, filter baskets and special-shaped frames to fit diverse filtration needs.

Wide Applications
Ideal for filter cartridge inner support, filter tube skeleton, filter element outer protection and pleated filter media backing frames.
Widely used in industrial liquid and gas filtration, including water treatment, oil and fuel filtration, chemical processing, food and beverage filtration, as well as hydraulic pipeline filter parts.

Quality Control
We implement strict full-process QC inspection.
Raw materials are strictly tested for grade, thickness and surface quality before production.
During punching, hole size, spacing and surface smoothness are checked to ensure burr-free and neat holes.
Finished products undergo precision size tolerance detection, surface defect inspection and random compression resistance tests.
Pre-shipment double inspection on quantity, specifications and packaging ensures qualified and consistent products for global customers.

Packaging
Products are packed in export-standard fumigation-free plywood boxes or pallets.
Sturdy packaging prevents extrusion and deformation during long-distance transportation, meeting international export standards for safe delivery and smooth customs clearance.

PFPE KING P-AMBLYGON TA 15 2
Article-No: 020109
Special grease for long-term lubrication and high temperatures

PFPE KING P-AMBLYGON TA 15ï¼?2 is a long-term and high-temperature lubricating grease based on mineral oil and polyurea. This lubricating grease is used for long-term or lifetime lubrication in the machine-building sector covering a wide service temperature range up to 150 �°C. PFPE KING P-AMBLYGON TA 15ï¼?2 offers good adhesion, resistance to hot and cold water and diluted alkaline and acid solutions.PFPE KING P-AMBLYGON TA 15ï¼?22 is resistant to oxidation and ageing and protects against corrosion.

Benefits for your application
Versatile grease for many applications subject to high loads
Long service life even when exposed to high temperatures or aggressive media
Long service life due to the high resistance to water and water vapour
Long service life due to the excellent adhesion to the friction points
Improved sealing effect due to high adhesion
Low maintenance due to good corrosion protection

Kluberlectric KR 44-402
Article-No: 091021
Special grease for the lubrication of electrical switches, contacts and sensors

Kl�¼berlectric KR 44-402 is a special grease for the lubrication of electrical switches, contacts and sensors. It consists of a synthetic hydrocarbon oil and lithium complex soap incorporating a UV indicator for quality inspection when locally applied in small quantities. A special additive combination makes Kl�¼berlectric KR 44-402 particularly suitable for the lubrication of electrical contacts. It is intended especially for the protection and lubrication of copper, tin and silver surfaces against corrosion. Further positive effects are: reduction of plug-in and switching forces, reduction of fretting corrosion, extended connecting and switching cycles, constantly low contact resistance and smoother switching transitions.
Benefits for your application
Wide service temperature range
Good corrosion protection of copper and silver contacts
Ageing and oxidation stability
Good compatibility with plastics
Damping effect
Contains a UV indicator

DOP/PAO Test Port
Equipped with a dedicated test port for DOP or PAO aerosol leak testing, allowing convenient on-site verification of HEPA filter integrity and sealing performance.

Gel Seal Design
The gel seal structure provides reliable sealing between the HEPA filter and housing, helping minimize bypass leakage around the filter.

Built-in HEPA Filter
Equipped with a high-efficiency HEPA filter to effectively remove airborne particles and provide clean air supply for controlled environments.

On-site Performance Verification
Compared with standard HEPA air supply outlets, the DOP design includes a dedicated test port for on-site leak testing, making cleanroom commissioning, validation, and maintenance more convenient.

Durable Cold-Rolled Steel Construction
Manufactured from cold-rolled steel plate for a stable and durable structure suitable for long-term cleanroom applications.

Stainless Steel Filter Mesh Woven Wire Mesh for Liquid & Solid Filtration


HUZE stainless steel wire mesh is professionally woven with advanced craftsmanship. The whole mesh surface is� flat and smooth without warping, the weaving lines are neat and uniform.

Made of premium 304 stainless steel material, it features excellent corrosion resistance, rust proof and high temperature resistance, ideal for industrial filtration, sieving, separation and protective screening in various industries.


Quality Control

HUZE strictly controls every production process of stainless steel wire mesh, adheres to high-standard quality management, and implements� full inspection for every roll. From raw material selection, weaving production to finished product testing, every link is strictly checked layer by layer. We strictly control mesh flatness, square opening uniformity, wire diameter tolerance and overall structural stability, to ensure every roll of HUZE wire mesh delivers stable quality, and consistent specifications for global customers.



Stock

We have complete specifications of stainless steel wire mesh in large stock,� ranging from low mesh count to high mesh count. All conventional sizes are available in sufficient inventory, ready for fast delivery without long waiting time. HUZE support spot wholesale and small batch trial order, meet your different purchasing and engineering matching needs at any time.


Standard stock size

Mesh
Wire diameter
Roll size

2
3mm
1mx30m

4
1.6mm
1mx30m

6
1.2mm
1mx30m

8
0.9mm
1mx30m

10
0.7mm
1mx30m

12
0.8mm
1mx30m

16
0.45mm
1mx30m

20
0.4mm
1mx30m

30
0.3mm
1mx30m

40
0.25mm
1mx30m

60
0.19mm
1mx30m

80
0.12mm
1mx30m

100
0.1mm
1mx30m

120
0.08mm
1mx30m

150
0.06mm
1mx30m

180
0.05mm
1mx30m

200
0.04mm
1mx30m

300
0.03mm
1mx30m

400
0.025mm
1mx30m

500
0.025mm
1mx30m

If you need other specifications, please contact us to check stock status.� 
Other widths like 3', 4', 5' can also be customized. Some are in stock also.� 



Package

We use� export-standard fumigation-free plywood boxes� for packaging. The box structure is sturdy and durable, four sides support forklift operation, loading and unloading is more convenient. Overall packaging is tightly fixed, effectively preventing extrusion, deformation and damage during long-distance transportation. It meets international export packaging requirements, ensure goods arrive safely, and support smooth customs clearance for global customers.



About HUZE MESH

With 16 years of professional manufacturing experience in stainless steel wire mesh, HUZE has always adhered to� quality first and integrity-based operation. If you are looking for high-quality and reliable stainless steel wire mesh with stable quality assurance, welcome to contact HUZE at any time!

COVALVE API 600 WCB Cast Steel Flanged Gate Valve is designed for reliable on-off isolation in oil, gas, water, steam and general industrial pipeline systems.

The valve features an ASTM A216 WCB cast steel body, bolted bonnet, wedge gate, OS&Y rising stem and flanged end connections. The rising stem provides clear visual indication of the valve position, while the straight-through flow passage helps minimize flow resistance when the valve is fully open.

Main Specifications:

Product Type: Cast Steel Wedge Gate Valve
Design Standard: API 600 / ASME B16.34
Body Material: ASTM A216 WCB Cast Steel
Structure: OS&Y Rising Stem, Bolted Bonnet
Connection: Flanged RF or RTJ
Face-to-Face Standard: ASME B16.10
Size Range: 2 to 48 inches / DN50 to DN1200
Pressure Rating: Class 150 to Class 2500
Operation: Handwheel or Gearbox
Applicable Media: Water, Oil, Gas and Steam
Inspection and Testing: API 598

The valve is suitable for petroleum, natural gas, petrochemical, power generation, water treatment and other industrial applications. It is intended for fully open or fully closed service.

Different sizes, body materials, trim configurations, pressure classes, flange standards and operation methods can be supplied according to project requirements.

Transformer insulation pressboard is a rigid cellulose board used for barriers, spacers, cylinders and other structural insulation parts in oil-filled transformers. It offers good mechanical strength, dielectric insulation and oil compatibility.

Why Pressboard Is Used in Transformer Insulation

In transformers, insulation is not only an electrical issue. It is also a structural and mechanical issue.

That is why pressboard transformer insulation is widely used. Compared with thinner insulation papers, pressboard provides:

higher mechanical strength

better dimensional stability

stronger support for internal parts

good dielectric insulation

good performance in oil-immersed transformer systems


Heat-resistance: Class A 105â??

B+ & A Quality Thickness(mm): 0.8/1/1.5/2/2.5/3/4

Size(mm): 1000x2000



A+ Quality Thickness(mm): 0.8/1/1.5/2/ 2.5/ 3/ 4

Size(mm): 1000x2000 1050X2000 1400X2500


G4 Quality (high density)Thickness(mm): 1-50

Size: 1050X2000 2100x3200 2200x4400

Link: https://www.paperinsulation.com/insulation-paper/insulation-pressboard.html
Email: inquiry@chrcn.com

Cyclopentane is a colorless, transparent liquid

Cyclopentane is a colorless, transparent liquid with a gasoline-like odor and the chemical formula C5H10; it serves as a blowing agent for rigid polyurethane foam.

With a boiling point of 49.3C and a flash point of -37C, cyclopentane is characterized by its low boiling point and high volatility. Its extremely low flash point classifies it as a highly flammable hazardous material, requiring strict control over ignition sources and static electricity during use, storage, and transportation.

Cyclopentane is valued for its versatility, serving as a blowing agent, chemical raw material, solvent, refrigerant, and lubricant. It is a key raw material for the production of eco-friendly products such as refrigerators and freezers and is also used in cold storage facilities and pipeline insulation.

Diamond dotted paper (DDP) is an electrical insulation presspaper partially coated with heat-curable epoxy resin dots arranged in a diamond pattern. During coil drying / oven heating, the resin dots soften and cure to bond adjacent layers, helping improve winding mechanical stability in transformer manufacturing.

DDP insulation paper is commonly used as interlayer insulation between coils in oil-immersed transformers, where controlled bonding is needed without sacrificing oil impregnation and drying efficiency.
Chengrui Insulation can provide DDP insulation paper in rolls with different thicknesses, widths, and slitting options according to production requirements. Our team can help confirm roll size, resin dot pattern requirements, packing method, sample availability, and bulk order delivery schedule.

Type: Insulation paper

Heat resistance: Class A 105�°C

Thickness: 0.08mm, 0.13mm, 0.15mm, 0.17mm, 0.20mm, 0.25mm, etc

Width: 960mm, 1000mm, 1100mm, 1300mm or customized

Color: Natural

· DOP/PAO Test Port
Equipped with a dedicated test port for DOP or PAO aerosol leak testing, allowing convenient on-site verification of HEPA filter integrity and sealing performance.

· Gel Seal Design
The gel seal structure provides reliable sealing between the HEPA filter and housing, helping minimize bypass leakage around the filter.

· Built-in HEPA Filter
Equipped with a high-efficiency HEPA filter to effectively remove airborne particles and provide clean air supply for controlled environments.

· On-site Performance Verification
Compared with standard HEPA air supply outlets, the DOP design includes a dedicated test port for on-site leak testing, making cleanroom commissioning, validation, and maintenance more convenient.

· Durable Cold-Rolled Steel Construction
Manufactured from cold-rolled steel plate for a stable and durable structure suitable for long-term cleanroom applications.

Lost Circulation Material (LCM) - Oilfield / Drilling Grade

We supply Lost Circulation Materials (LCM) from China for oil and gas drilling operations.

Our LCM products are designed to help control and reduce drilling fluid losses into naturally fractured, vugular or highly permeable formations.

Available LCM types include:

Granular LCM
Fibrous LCM
Flaky LCM
Mixed / Blended LCM
Coarse, medium and fine particle sizes
Customized blends according to drilling conditions

Typical applications:
Lost circulation control
Fractured formations
Vugular formations
Highly permeable formations
Wellbore strengthening
Drilling fluid loss prevention

Product specifications, particle size distribution and formulation can be customized according to the customer's drilling requirements.

Packing:
25 kg bags / 500 kg bags / 1,000 kg jumbo bags, or customized packing.

Origin: China

We welcome inquiries from:
Oilfield service companies
Drilling contractors
Drilling fluid companies
Oilfield chemical distributors
Mud chemical importers
Oil and gas operators

Please send us your required specification, estimated quantity and destination port for a quotation.

COA, MSDS, technical data sheet and samples can be provided upon request.

Our transformer insulation pressboard support strips are manufactured using highly refined and purified insulating pressboard to ensure excellent performance in electrical applications. The material is carefully processed to achieve uniform thickness and is free from pinholes, undispersed fiber bundles, and other microscopic defects. This meticulous production process guarantees consistent quality and reliable insulation properties for your transformer applications.

The main types of Pressboard Support Strips:

R-Chamfered Support Strip / Radius Edge Support Strip

Non-Chamfered Support Strip / Square Edge Support Strip

Right-Angle Edge Support Strip



Applications and Functions of Insulation Support Strips:

â??Oil-Immersed Transformers:

Winding Fixation: Work together with upper and lower positioning rings and columnar spacers to create a robust mechanical support system, preventing winding short circuits or deformation.

Cooling Optimization: The spacing between insulation support strips directly influences oil flow. Elongated hole designs (e.g., 20-30 mm spacing, 5-8 mm diameter holes) increase the heat dissipation surface area.

Dry-Type Transformers:

Utilize high-temperature-resistant materials (e.g., Class F, 155C) to avoid softening or deformation under thermal stress.

â??Special Scenarios:

High-Humidity Environments: Employ anti-hygroscopic materials such as polyimide composites.

High-Frequency Transformers: Optimized dielectric properties help minimize partial discharge risks.