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Saturday, October 12, 2019

Quantity : 2000 tons

RTV-1 silicone is a condensed silicone rubber that is gradually cured from outside to inside by contacting with moisture in the air. RTV-1 silicone rubber купить are used in bonding, sealing, encapsulating photovoltaic module components including photovoltaic frame, junction box and...

Thursday, October 10, 2019

The essence of the chromatographic process is the process of distributing the equilibrium of the molecules of the substance to be separated between the stationary phase and the mobile phase. The distribution of the different substances between the two phases will be different, which...

Wednesday, October 09, 2019

Solid phase extraction (SPE) is used to reduce sample matrix interference and improve detection sensitivity. The separation selectivity of the solid phase depends on the retention strength of the components that can be retained, so the selection of the solid phase will depend on the...

Tuesday, October 08, 2019

The essence of the chromatographic process is the process of distributing the equilibrium of the molecules of the substance to be separated between the stationary phase and the mobile phase. The distribution of the different substances between the two phases will be different, which...

Monday, September 30, 2019

High light density flip COB, this product USES no gold wire packaging, at the same time has the advantages of high central light intensity, uniform light output, high reliability, the size of the product is compatible with the commercial bracket and lens on the market and other related kits...

Monday, September 30, 2019

What is the difference between smd and cob led？ Definition of COB LED COB LED chip is directly bonded and packaged on the whole substrate, i.e. numbers of chips are integrated together on the back board. It is mainly used to solve the problem of manufacturing high-power LED lamps...

Saturday, September 28, 2019

Depending on the packing of the HPLC column. The following column types are available on the market: 1. Silica gel HPLC column: Silica gel is the earliest chromatographic column packing used in liquid chromatography. It has a wide range of applications. However, it can only be used...

Friday, September 27, 2019

Ceramic membranes (Porous Ceramic Membrane & tubular ceramic membrane) are available for microfiltration, ultrafiltration and nanofiltration as single-channel or multiple-channel elements with channel diameters between 2 and 16mm. Their main characteristics of porous tubular ceramic...

Friday, September 27, 2019

The film backing is waterproof and oil resistant, polyester film isn't easy to be damaged and the surface is more smooth. For the concave and convex surface, the abrasive film will have a good job. It can supply the fine work surface and be folded to any shape, no broken. Using...

Friday, September 27, 2019

Reliable flash columns play a decisive role in a good chromatographic separation method, which ensures complete separation of valuable compounds and specific impurities. Choosing the right flash column is the most critical part of the purification process. There are two aspects should...

Thursday, September 26, 2019

Quantity : 2000Ton - Price : 6~60 usd/KG

Are you looking for RTV silicone thermal conductivity? FEATURES OF GOLOHO-2752 GOLOHO-2741 is a high performance thermally conductive RTV silicone adhesive · Excellent thermal conductive, heat dissipation and adhesion ·Small power heater can be directly bonded on the radiator without...

Thursday, September 26, 2019

Quantity : 2000Ton - Price : 6~60 usd/KG

RTV-1 silicone is a condensed silicone rubber that is gradually cured from outside to inside by contacting with moisture in the air. It can be also called non conductive silicone sealant. RTV-1 silicone rubber are used in bonding, sealing, encapsulating photovoltaic module components...

Thursday, September 26, 2019

- Reversed-Phase Principle - The reversed-phase filler is a kindly of nonpolar filler such as C4, C8, C18 aliphatic chain which is bonded on the silica gel. Nonpolar or hydrophobic compounds are strongly reserved, while polar samples are weakly reserved and go through the flash reversed-phase...

Wednesday, September 25, 2019

Quantity : 50000/mont - Price : usd3-10

What is the copper-bonded copperweld steel ground rod? Product Name: Copper coated copperweld steel ground rod Production process: electroplating / continuous electroforming Raw materials: Cold draw high quality mild steel Product type: one pointed, one flat, two threads (requires...)

Friday, September 20, 2019

Quantity : 1PC - Price : 0.01-100 USD/PCS

Magnetic materials can produce magnetic fields, which generate forces attracting or repelling ferromagnetic materials and other magnets. Magnetic materials can be divided into soft and hard magnets. Soft magnets are those materials easy to magnetize and demagnetize, while hard magnets...

Friday, September 20, 2019

Hawach spherical C18 flash column is a typical column product used for the preparative separation, which has undergone rigorous mass determination before sales. The performance parameters of the flash column are carefully controlled and rigorously tested as well. Basic Information...

Friday, September 20, 2019

Silica matrix HPLC columns are generally compatible, but organic polymer matrix columns may expand or contract in some solvent combinations, which will affect their chromatographic behavior. Wash each solvent system at least 20 volumes. Because some solvent systems are highly viscous...

Thursday, September 19, 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...

Wednesday, September 18, 2019

Quantity : 20GP - Price : 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...

Wednesday, September 18, 2019

Quantity : 20GP - Price : 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...

Tuesday, September 17, 2019

Quantity : 1pc - Price : 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...

Tuesday, September 17, 2019

Quantity : US $1 - 3, - Price : 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...

Tuesday, September 17, 2019

Quantity : 1pc - Price : 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...

Tuesday, September 17, 2019

Quantity : 1pc - Price : 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...

Tuesday, September 17, 2019

Quantity : 1pc - Price : 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...

Tuesday, September 17, 2019

Quantity : 1pc - Price : 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...

Tuesday, September 17, 2019

Quantity : 1pc - Price : 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...

Tuesday, September 17, 2019

Quantity : 1pc - Price : 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...

Thursday, September 12, 2019

Quantity : 300pcs/MOQ - Price : 1.5-10usd

Categories of Commercial Carpets Nylon carpet is a new type carpet use nylon as raw material and processed by machine. Nylon printed carpet is outstanding in aesthetic, decorative, wear resistance and quick resilience after compression. Its high quality especially reflected in which...

Thursday, September 12, 2019

As an important branch of chromatography, high-performance liquid chromatography (HPLC) has become an important application of separation and analysis technology in the fields of chemistry, medicine, industry, agriculture, commodity inspection, and law inspection. Features of high-performance...