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Top Supplier Cities : Doha   -   Al Wakrah  
Oct-05-20
Supplier From Doha, Qatar, Qatar
 
Dear Buyers,

Land rover screens are available
Jul-27-21
Jul-30-04
Supplier From Doha, Qatar
Mar-17-20
Supplier From Doha, Doha, Qatar
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Jun-01-12
Supplier From Doha, Qatar
Jul-17-20
 
Disposable surgical mask for single-use, Type IIR (acc. to EN 14683:2019), hydrophobic, blue, 3-ply, elastic ear loops, pliable nose piece,
dimensions 175 x 95 mm

Features:
Medical Device Class I
3-ply (PP spun bond inner and outer layers, PP melt blown filter layer)
Latex-free, fiberglass free
Bacterial Filtration Efficiency (BFE): 98%*
Breathability (differential pressure Pa/cm): < 60
Splash resistance: 16 kPa
SU = 50 pcs in a dispenser box
Mar-13-23
 
Panel meters
Cam switches
Contactor
Control stations
Counters
Hazardous area control gear
Limit switches
Manual motor starters
Monitoring relay
Overload relays
Plug-in relays
Push buttons & indicators
Temperature & process controller
Timers
Plastic, sheet steel & stainless steel enclosures
Mar-13-23
 
Chart recorders
Gas analysing meters & detectors
Load cells & display units.
Instrumentation: flow, level & pressure control equipment for all industrial processes & mediums
Vacuum switches generators & pumps
Pressure gauges
Mar-13-23
 
Gate Valves
Wafer Valves
Knife gate valves
Non-return valves
Pressure relief valves
Actuators
Positioners
Mar-13-23
 
Photocells
Fans & ventilation,
Hazardous area lighting
Industrial plugs & sockets
Industrial & commercial Lamps
Light fittings: fluorescent, weatherproof & floodlighting
Refrigeration & air conditioning spares
Water heating elements
Wiring accessories
MCB's
Circuit breaker
Vacuum Breakers
Control transformers
Fuses & load break devices
Hazardous area products
Industrial beacons
Industrial sounders, buzzers
Industrial surge protection
Safety switches
Clamp meters
Multi-meters
Testers
Semiconductors: thyristors, rectifiers
Pressure switches
Solenoid & pilot valves
Photoelectric Sensors
Mar-13-23
 
GGBFS
Ground granulated blast furnace slag (GGBFS)

The ground granulated blast furnace slag (GGBFS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree Celsius. The process is carried out in a blast furnace. The formation of GGBFS is not direct. The by-product of iron manufacturing is a molten slag and molten iron. The molten slag consists of alumina and silica, also with the certain amount of oxides. This slag is later granulated by cooling it. For this, it is allowed to pass through a high-pressure water jet. This result in quenching of the particles which results in granules of size lesser than 5mm in diameter. The main constituents of blast furnace slag are CaO, SiO2, Al2O3 and MgO. These are the minerals that are found in most of the cementitious substances. The particles are further dried and ground in a rotating ball mill to form a fine powder, known as ground granulated blast furnace slag cement. Now different methods can be employed to perform the main process called as the quenching.

Applications & Benefits of GGBFS:
In concrete:
The incorporation of ground granulated blast furnace slag in concrete manufacture gains many advantages which are mentioned below:

GGBFS in concrete increases the strength and durability of the concrete structure.
It reduces voids in concrete hence reducing permeability
GGBFS gives a workable mix.
It possesses good pumpable and compaction characteristics
The structure made of GGBFS constituents help in increasing sulphate attack resistance.
The penetration of chloride can be decreased.
The heat of hydration is less compared to conventional mix hydration.
The alkali-silica reaction is resisted highly.
These make the concrete more chemically stable.
Gives good surface finish and improves aesthetics.
The color is more even and light.
Lower chances of efflorescence.
The maintenance and repair cost of structures are reduced thus increasing the life cycle of concrete structures.
Unlike cement, GGBFS does not produce carbon dioxide, sulphur dioxide or nitrogen oxides.
White Cement:
White Portland Cement is of high quality, whiteness and strength, it essentially has the same properties and characteristics as gray cement, except for color.

It is widely used in numerous applications such as precast concrete, cast-in-place concrete, terrazzo, median barriers, curbs, tile grout, paint, masonry units, swimming pools, glass fibre reinforced surface bonding mortars.
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