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Jeudi 19 septembre 2019

The filter paper used in the analytical laboratory performs a strong absorption effect for liquids, which can separate the solution from the solid. The filter paper produced domestically could be divided into three types, including qualitative filter paper, and quantitative filter paper...

Jeudi 19 septembre 2019

It is a liquid chromatography using a chemically bonded phase as a stationary phase, which is formed by chemically reacting an organic molecule to a surface of a carrier (silica gel) by a covalent bond to form a uniform, firm monolayer thin layer. The separation mechanism is both...

Mercredi 18 septembre 2019

Quantité : 20GP - Prix : 5USD

Description of Calcium aluminate cement Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral...

Mercredi 18 septembre 2019

Quantité : 20GP - Prix : 5USD

Calcined Bauxite manufacturers produce Calcined Bauxite by firing (heating) the superior grade Bauxite at high temperature (from 850℃ to 1600℃). This removes moisture thereby increasing the alumina content. Compared to an alumina content of about 57 % to 58 % in raw Bauxite, Calcined...

Mercredi 18 septembre 2019

Quantité : 20GP - Prix : 5USD

Description of Calcium aluminate cement Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral...

Mercredi 18 septembre 2019

Are you looking for best price treated pine sleepers ? Do you want to know timber paint for sleepers? Or want to buy pine sleepers? Timber sleeper(wood used in railway sleeper), it is a kind of wooden train sleepers. For the railway system, the railroad timber sleepers are an infrastructure...

Mercredi 18 septembre 2019

Steel sleeper can provide lower installation and maintenance costs and more efficient logistics that are designed to cater for all types of application, from meter gauge railways to mainline passenger and heavy haul freight routes. Moreover, it requires less ballast than traditional...

Mercredi 18 septembre 2019

Do you want to buy concrete railway sleepers or want to know the cement sleepers price? Our company is a concrete sleeper factory, and it is also one of the most professional concrete railway sleepers suppliers in China. A concrete sleeper (British English) or concrete tie (American...)

Mercredi 18 septembre 2019

Selection of scavengers The conventional QuEChERS method only uses PSA which is too simple single that can no longer meet the complex matrix samples examination experiments. GCB (graphitized carbon black) can effectively adsorb pigments, non-polar interferences such as sterol due...

Mercredi 18 septembre 2019

In the analysis of HPLC, the packing size of chromatographic column is small, and it is easy to be blocked by impurity particles. Therefore, samples and solvents need to be pre-filtered to remove particulate pollutants and protect chromatographic columns and instruments. Ion chromatography...

Mercredi 18 septembre 2019

In chromatographic experimental analysis, a device that can quantitatively feed a sample bottle into a chromatographic column is called a sample vial. Sample vials are divided into manual and automatic sample vials. The automatic sample vial is an intelligent and automatic sampling...

Mercredi 18 septembre 2019

Flash column from Hawach Scientific features in high compatibility, safety, and flexibility, most of them can be used for separation of different compounds with good flow distribution. Customized packing and clean package make the super clean environment and better shipping cost,...

Mercredi 18 septembre 2019

The capsule filter is small in size and mainly used in purification and filtration of chemicals, pharmaceuticals, microelectronic reagents, etc. The filter medium is placed in the interior of the capsule filter in the form of folds, which enlarges the filtering area and ensures the...

Mercredi 18 septembre 2019

Hawach Scientific provide Glass fiber filter membrane, with a binder and without binder both available. Here we introduce the without binder type. Pore size : 0.7um /1.2um Diamter : 13/25/47/50/60/90/100/106/120/142/150/20 0/250mm. Glass fiber filter membrane is chemically inert, without binder...

Mercredi 18 septembre 2019

Hawach SPE Cartridges are made of medical grade PP and forming in one time. Frits are made of UHMW-PE. There is a variety of models to choose, such as Normal Phase Cartridge, Reversed Phase Cartridge, Ion Exchanges Cartridge, Mixed Mode Cartridges and so on. Here, We would like to...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

The double plate China wafer check valve is used for the pure pipeline, industry, environmental protection, water treatment, high-rise building water supply, and drainage pipeline to prevent reverse flow of the medium. The disc check valve adopts wafer type, butterfly disc is two...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic information This underground gate valve is used as a two-way closed circuit device. Features 1. No need for sluice Wells, which reduces the amount of installation work; 2. Does not affect the traffic, and underground parts of the integration, effectively prevent theft; 3. Stem...

Mardi 17 septembre 2019

Quantité : US $1 - 3, - Prix : 1pc

Basic information This valve is installed at the outlet of the water pump. It can prevent the backflow of the medium, linked with the water pump, and can effectively prevent the water hammer phenomenon. Features 1. Slow closing effectively prevents water hammer. 2. Stop pump stable...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic information This sustaining valve is opened to prevent the pipeline and equipment from being damaged due to overpressure when the pressure in the water supply pipeline exceeds the set pressure of pressure relief. The valve closes automatically when pressure drops to the set value...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic Information of the no slam check valve This non slam valve prevents backflow of media and reduces water hammer to achieve the safe and quiet effect. Features 1. Small fluid resistance, large flow; 2. Automatic control using medium energy; 3. Prevent water hammer phenomenon; 4...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

What is China check valve? Basic information This valve can be installed at the water outlet of the pump or the water outlet pipe to prevent backflow of the medium. Features 1. Switch can be up to 100,000 times; 2. Full flow area, low flow resistance; 3. Less likely to accumulate debris; 4...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic information of the fire protection butterfly valves This fire protection butterfly valve can be used to cut off, switch on and adjust the medium in the pipeline. Features 1. Disc and stem are connected without the pin, and the connection is reliable; 2. Concentric sealing design...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic information This big dirt separator valve is used for water purification. Features 1. Easy to operate； 2. No water stop is required to clean the cavity body； 3. Dirt above 0.005 millimeters can be removed, and can absorb rust； 4. The large volume of waste collecting chamber...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

The concentric butterfly valve is characterized by the stem center, disc center and body center in the same position. Such structures are simple to make. The common wafer rubber lined butterfly valves are of this type. The drawback is that the disc and seat are always in the extrusion...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic information Venturi flowmeter is adopted in the body of a balanced valve with threaded connections to make flow adjustment more accurate and flow monitoring more convenient. Accurately balance the flow of each branch or end of the system. Features of bronze balancing valve 1...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic information This bronze adjustable dynamic flow balancing valve is required to maintain the flow of these or end equipment at all times within the working differential pressure range. As the system pressure fluctuates, the valve will automatically move up and down to change the opening...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

Basic information of the big size gate valve This valve is used in the pipeline as a cut-off valve. Features 1. High-quality EPDM brake rubber provides good sealing performance; 2. The bronze brake nut is not easy to damage even if the switch torque is too high; 3. Light switch torque...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

ZECO is currently the only manufacturer in China with accurate KV data and support debugging services. We have our own dynamic water testing system, and all the differential pressure control valvesa and Balancing Valves used in the heating system and heating system are tested with accurate data...

Mardi 17 septembre 2019

Quantité : 1pc - Prix : US $1 - 3,000 / Set

The problem of contaminated water due to backflow is emerging, and the health hazards caused by contaminated water are also alarming to engineers and water equipment suppliers. The problem of backflow water may occur in every place where water is used. We can learn about the harm...

Mardi 17 septembre 2019

Introduction: Custom rigid box for various differentand Spirit, the high end construction can stand heavy strength and stable durability when you place with equipment or other products. This kind of Eco-friendly recycle rigid box is used as a container ofand other Spirit. It is well-designed...