We are manufacturer of Printed circuit board (PCB) in china.
Our main products range from Multilayer PCB, High frequency PCB, Metal base PCB, Hi-Tg heavy copper foil PCB and Mixed Dielectric base PCB, HDI, rigid-flex PCB, and many other customized PCB with special performance which are widely used in Communication, power supply, computer, consumer electronics, industrial control, medical device, Aeronautics and Astronautics high technology field and spread over America, Europe and some Asia Districts, achieving their satisfacation.
Pcb manufacturer in china with best quality and competitive price.
1-20 rigid printed circuit board
1-2 layer white/black aluminum led pcb
From quickturn prototype to mass production.
Please don't pay before you send the pcb file to us.
Please send the file to leappcb at 163.Com.
Skype: leappcb website: www leappcb.Com
We will send the quotation to you asap, thanks.
Leappcb sales department----lillian
Depend on the specific order
17193 2 Layer Pcb Circuit Board Suppliers
Short on time? Let 2 Layer Pcb Circuit Board sellers contact you.
Konrich Technologies has been providing printed circuit boards (pcb) to our customers throughout the world for many years.
With our rich experience in pcb manufacturing, we received a high recognition from customers. Good quality record, high on-time delivery rate and excellent customer service leaves a very good impression to our customers and also make us very competitive in the industry.
With the advantage of our strong R&D, we can produce many types of pcb boards - normal single, double to multilayer boards, HDI as well Flex & Rigid-flex boards. Our pcb boards are widely used in many fields - Industrial control, Communication, Medical, Security, Consumer Electronics, etc.
Konrich Technologies has been providing printed circuit boards (pcb) to our customers throughout the world for many years.
With our rich experience in pcb manufacturing, we received a high recognition from customers. Good quality record, high on-time delivery rate and excellent customer service leaves a very good impression to our customers and also make us very competitive in the industry.
With the advantage of our strong R&D, we can produce many types of pcb boards - normal single, double to multilayer boards, HDI as well Flex & Rigid-flex boards. Our pcb boards are widely used in many fields - Industrial control, Communication, Medical, Security, Consumer Electronics, etc.
We are specializes in the manufacture of a wide range of board types. The emphasis on R&D has helped us become a market leader in the development and manufacturing of advanced PWBs.
Our capabilities enable us to offer:
Rigid boards up to 42 layers
Flex and Rigid-Flex boards up to 40 layers
Hybrid solutions for Microwave/RF applications
Thermal and signal integrity management solutions, employing coins and cavities
2D or 3D heat-sinks: Copper and Aluminum
Carbon printing
HDI blind, buried, staggered & stacked vias
Buried passive components: capacitors and resistors
In-house HATS lab
We are specializes in the manufacture of a wide range of board types. The emphasis on R&D has helped us become a market leader in the development and manufacturing of advanced PWBs.
Our capabilities enable us to offer:
Rigid boards up to 42 layers
Flex and Rigid-Flex boards up to 40 layers
Hybrid solutions for Microwave/RF applications
Thermal and signal integrity management solutions, employing coins and cavities
2D or 3D heat-sinks: Copper and Aluminum
Carbon printing
HDI blind, buried, staggered & stacked vias
Buried passive components: capacitors and resistors
In-house HATS lab
Ginger root
Botanical name: Zingiber officinale Linn.
Family: Zingiberaceae.
Ginger oil and oleoresins are the volatile oil derived by steam distillation of ginger and oleoresin. It is obtained by percolating the powdered rhizomes of Ginger, Zingiber officinale with volatile solvents. Ginger contains 1-2 percent of volatile oil, 5-8 percent of pungent acrid oleoresin and starch. Zingiberene is the chief constituent in the oil of ginger. Oil is employed for flavoring all kinds of food products and confectionary and finds limited use in perfumery. Oleoresin, commercially called Gingerin contains pungent principles viz. gingerol and shogaol apart from the volatile oil of ginger and is used as an aromatic, carminative, stomachic and as a stimulant.
Oleoresin from ginger is obtained conventionally by extraction of dried powdered ginger with organic solvents like ethyl acetate, ethanol or acetone. Commercial dried ginger yields 3.5-10.0 per cent oleoresin. Ginger oleoresin is a dark brown viscous liquid responsible for the flavour and pungency of the spice.
Ginger of commerce or `Adrak` is the dried underground stem or rhizome of the plant, which constitutes one of the five most important major spices of India, standing third or fourth, competing with chillies, depending upon fluctuations in world market prices, world market demand and supply position.
Ginger, like cinnamon, clove and pepper, is one of the most important and oldest spices. It consists of the prepared and sun dried rhizomes known in trade as `hands` and `races` which are either with the outer brownish cortical layers (coated or unscraped), or with outer peel or coating partially or completely removed.
Ginger requires a warm and humid climate. It is cultivated from sea level to an altitude of 1500 meters, either under heavy rainfall conditions of 150 to 300 cm or under irrigation. The crop can thrive well in sandy or clayey loam or lateritic soils.
The composition of dry ginger is given below:
Dry Ginger rootMoisture:6.9 %
Protein:8.6 %
Fat:6.4 %
Fiber:5.9 %
Carbohydrates:66.5 %
Ash:5.7 %
Calcium:0.1 %
Phosphorous:.15 %
Iron:0.011 %
Sodium:0.03 %
Potassium:1.4 %
Vitamin A:175 I.U./100 g
Vitamin B1:0.05 mg/100 g
Vitamin B2:0.13 mg/100 g
Niacin:1.9 mg/100 g
Vitamin C:12.0 mg/100 g
Calorific value:380 calories/100 g.
Ginger Oleoresin is obtained by extraction of powdered dried ginger with suitable solvents like alcohol, acetone etc. Unlike volatile oil, it contains both the volatile oil and the non-volatile pungent principles for which ginger is so highly esteemed. Concentration of the acetone extract under vacuum and on complete removal of even traces of the solvent used, yields the so called oleoresin of ginger. Ginger oleoresin is manufactured on a commercial scale in India and abroad and is in great demand by the various food industries.
Product Name: Sodium permanganate
Use level: Industrial
Content: 40 (%)
CAS Number: 10101-50-5
Molecular formula:NaMnO4
Molecular Weight: 141.93
Appearance: purple liquid. A density of 1.36 ~ 1.39 g / cm3, soluble in water, ethanol and ether, soluble in liquid ammonia. Decomposition in alkali. Strong oxidizing. And chemical properties similar to potassium permanganate.
Purposes: as oxidants, disinfectants, fungicides and phosphorous antidotes. Toluene is also used to manufacture saccharin, o-toluene sulfonamide and organic synthesis and purification of phenol wastewater treatment. Can be used for circuit boards, metal surface cleaning, the conductive film cleaning to remove grease, electrolytic manganese dioxide, chemical fiber finishing, electroplating addition to hydrogen sulfide and other odors, as well as water treatment and so on.
Packaging and storage: Industrial Pails barrel, net weight 25kg plastic drum, 250kg steel-plastic composite barrels, 1250kg IBC barrels packaging. Store in a cool dry place.
Quality Standard: Â
Items index
Sodium permanganate (NaMnO4) Content / (%) 40
Water-insoluble content / (%) 0.01
Potassium (K) content / (%) 0.22
pH value 6 ?8
Density / (g/cm3) 1.36 1.39
Chloride (Cl) content / (%) 0.02
Commodity:Sodium persulfate
Molecular Formula : Na2S2O8
Molecular weight : 238.13
Description
Sodium persulfate is a white,crystalline,odourless salt.It is used as initiator for the Polymerization of monomers and as a strong oxidizing agent in many applications.It has the particular advantage of being almost non - hygroscopic,of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle.
Transportation
Road/Rail transport : GGVS,GGVE,ADR,RID/CLASS 5.1 Sea transport : GGV Sea/IMDG code : CLASS 5.1 Page 5185,UN no.1505
Water hazards class 1(slight water hazard)
All information is given in good faith,but without warranty,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed.
Package
(1) In 25kgs net multiple paper bags with one PE bag inner
(2) In 25kgs net PE bags
(3) In 25kgs net woven bags with two PE bags inner
(4) In 1000kgs net big woven bags with one PE bag inner
The above package is also with a pallet 1000kgs each.
Storage
NPS(SPS) is not combustible but assists combustion materials due to release of oxygen.Provided it is stored under appropriate condition.It must be stored dry in closed containers and protected from direct sunlight,heat and humidity.Impurities such as dirt,rust or traces of metal and reductants may cause catalytic decomposition.The product as supplied or in solution needs to be handled with appropriate care.The eye,skin and clothes must be protected when working with NPS(SPS) as damp powder or aqueous solution has a bleaching and slightly corroding effect.
Application
Polymerization : Initiator for the emulsion or solution Polymerization of acrylic monomers,vinyl acetate,vinyl chloride etc.and for the emulsion co-polymerization of styrene,acrylonitrile,butadiene etc.
Metal treatment : Treatment of metal surfaces(e.g. in the manufacture of semiconductors;
cleaning and etching of printed circuits),activation of copper and aluminium surfaces.
Cosmetics : Essential component of bleaching formulations.
Paper : modification of starch,repulping of wet - strength paper.
Textile : Desizing agent and bleach activator - particularly for cold bleaching.(i.e.bleaching of Jeans).
Others :
- Chemical synthesis
- Water treatment(decontamination)
- Waste gas treatment,oxidative degradation of harmful substances(e.g.Hg)
- Disinfectant
ITEMS SPECIFICATIONS
Appearance white crystalline salt
Assay 99.0% w/w min
Active oxygen 6.65% w/w min
Chloride and chlorate(as CL) 0.005% w/w max
Ammonia (NH4) 0.05% w/w max
Manganese(Mn) 0.0001% w/w max
Iron(Fe) 0.001% w/w max
Heavy metals(as Pb) 0.001% w/w max
Moisture 0.05% w/w max
Decomposition of the product as supplied at above 65C
Recommended storage temperature Normal Temperature
Storage stability as from date of delivery 12 months
Leadsintec Co., Ltd is an ISO certified electronic and electrical manufacturer, providing services in the fields of PCB, Component procurement, PCB assembly and metal fabrication, growing global supplier channel management, electronics manufacturing service (EMS).
Our Capability and Services Range
1.PCB layout & fabrication
2. Production of customer designed components
3. SMD assembly and through hole components insertion
4. IC pre-programming
5. Function verification and burn in testing
6. Complete Unit assembly (which including plastics, metal box, Coil, cable inside etc.)
7. Environmental Coating
8. Engineering service including end of life components, obsolete component replace and design support for circuit, metal & plastic enclosure, packing design
9. Logistic arrange for import and export from China
Hdi pcb printed circuit board, china pcb manufacture
Layer count: 18l
Materials: m6
Board thickness: 3.0+/-0.3mm
Finishing size: 210x395.2mm
Min line w/s: 3.2/3.5mil
Min drill size [fhs/dhs] : 0.20mm/0.30mm
Plating ar dhs : 11.7:1
Hard gold thickness: 4um
Surface finish: enig
Impedance: tol: +/-7%, the deviation of the impedance in the same layer must not exceed +/- 2ohm
Other : back drill, rotated 7 degree.
Good day, hope you are well.
This is betty from o-leading supply chain (hk) co., limited, we strives to be your one stop solution partner of ems from china, including pcb design , pcb fabrication and pcb assembly (pcba), electronic components and so on.
The services we offer are beyond your imagination
Quick turn prototypes(24 or 48 hours), medium to high volumes
1-32 layers(rigid, flex, rigid-flex, hdi ) pcb
Fr4, high tg, rogers, arlon, metal base, halogen free
Heavy copper to 12oz
1.5m super long pcb
Full turn-key pcb assembly
Advantages: 1. Competitive price 2.Stable quality 3.Oem & punctual & fast delivery
If any questions or pcb projects, please feel free to contact us, looking forward to establishing cooperation with you in near future.
We are very professional on PCB and PCBA over 10 years and our factory pass ISO; UL; TS16949.
Do you have any PCB purchase plan? Hope we can have the chance to work for you.
Please kindly check below our standard PCB average price offer for you reference.
Standard stencil ------------------ 50usd/pcs
Standard 1 layer board (FR4)-----60usd/sqm
Standard 1 layer board (ALU)----70usd/sqm
Standard 2 layer board (FR4)-----80usd/sqm
Standard 4 layer board (FR4)-----100usd/sqm
Please contact me as soon as possible to get a quotation. sandy@topcbpcba.com here is my email.
Thanks&Best Regards,
Sandy
Sales manager
TOP Electronic (SZ) CO.,LTD
17193 2 Layer Pcb Circuit Board Suppliers
Short on time? Let 2 Layer Pcb Circuit Board sellers contact you.
