AGM&GEL - 1739 ads

Tuesday, September 17, 2019

Quantity : 100000pcs/ - Price : 1.5~4800 USD

Dongjin 2V series are valve-regulated, non-spillable types constructed with an absorbent glass mat (AGM ) with pasted flat lead-calcium alloy plates. They are designed to provide long, reliable service life without maintenance. The very large batteries are all of 2V voltage and the...

Tuesday, September 17, 2019

Quantity : 100000pcs/ - Price : 1.5~4800 USD

Dongjin Group is one of the most professional EV car battery manufacturers. Dongjin VRLA EV Battery is specially designed for the motive power of electric vehicles other devices require DC power source. EV battery is with long cycle service life, good high rate discharge performance...

Tuesday, September 17, 2019

Quantity : 100000pcs/ - Price : 1.5~4800 USD

Are you looking for a bike battery manufacturer in order to buy e bike battery? An Electric Bike is a fantastic way to reduce your carbon footprint and to be green. Dongjin group is one of the most professional electric bicycle battery suppliers . Dongjin group has been manufacturing...

Tuesday, September 17, 2019

Quantity : 100000pcs/ - Price : 1.5~4800 USD

Dongjin AGM deep cycle batteries are optimized for being discharged over a longer period of time. The specially designed plate formula increases cyclic life. With stable quality and affordable cost, our AGM low cost deep cycle batteries are widely used in all ranged of energy storage...

Monday, September 16, 2019

Hawach Scientific provides a wide selection of flash columns, they are a quick and easy way to separate complex mixtures of compounds, and often used on a preparative scale to provide better separation and cuts down on the amount of time required to run column. We committed to providing...

Wednesday, September 11, 2019

Quantity : 2500km/wee - Price : <$200

Description: UnitekFiber supply flat drop fiber cable, this cable also can be called as a small span of ADSS fiber cable to apply in a small span of ADSS installation system. The structure of flat drop cable is central loose tube, Kevlar and glass yarn is usually used as reinforcement...

Wednesday, September 11, 2019

Quantity : 1 - Price : 600~3000RMB

PSST explosion-proof telephone is designed to provide safe, reliable voice communication for both indoor and outdoor hazardous areas. featuring a sturdy non-sparking, impact and shock resistant fibreglass-reinforced polyester cast body, silica gel or stainless steel keypad, durable handset...

Wednesday, September 11, 2019

Flash chromatography is one of the methods in the preparation of liquid chromatography and is usually used for the separation of organic compounds. Flash chromatography has the advantages of ease of operation, low cost, and fast analysis. There are few other techniques for purifying...

Wednesday, September 11, 2019

The structure of the SPE cartridge is mainly divided into four parts: column tube, sieve plate, adsorbent and supporting device. The characteristics of each part are briefly introduced below. Column tube: A carrier for the adsorbent, made from serum grade polypropylene. Commonly used...

Tuesday, September 10, 2019

Quantity : 20,000 ton - Price : 2.4-2.9$/kg

Description of Food Grade CMC Sodium carboxymethyl cellulose (CMC/cellulose gum) is kind of cellulose ether, can easily soluble in cold and hot water, with maximum yield, most widely and conveniently used among all cellulose products. The main raw material of CMC is refined cotton and wood pulp...

Tuesday, September 10, 2019

According to the separation mechanism of substances, Chromatography can be divided into adsorption chromatography, distribution chromatography, ion exchange chromatography and the like. The operation mode of the adsorption thin layer chromatography refers to that the adsorption capacity...

Saturday, September 07, 2019

Price : 2.4usd

Description of Food Grade CMC Sodium carboxymethyl cellulose (CMC/cellulose gum) is kind of cellulose ether, can easily soluble in cold and hot water, with maximum yield, most widely and conveniently used among all cellulose products. The main raw material of CMC is refined cotton and wood pulp...

Tuesday, September 03, 2019

Chemical properties of the chromatographic column could affect the performance of the C18 HPLC column. Performance factors of C18 HPLC columns: bonding type Single tooth bonding can improve the mass transfer rate and accelerate column balance. Double tooth bonding can increase the...

Tuesday, September 03, 2019

The basic principle of SPE cartridges is that the liquid sample is made to pass through the adsorbent to retain the tested substance, and then the impurities are washed away with appropriate strength solvent, and then the tested substance is eluted with a small amount of good solvent...

Saturday, August 17, 2019

Quantity : 500kg

We offer different kinds of Station Post Insulator for Substation, such as Circuit Breaker (CB), Post Insulator, Disconnector, Potential Transformer (PT), Surge Arrester, etc. Contact us get more details about Station Post Insulator, such as TDS, Application Method, OEM etc. We can...

Friday, August 16, 2019

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-D10 Digital Trimmer 3 Modes Ear Hook Trimmer Hearing Aids Hearing Amplifier - Max Sound Output 128±3dB Voltage D.C.1.4V Sound Gain 57±5dB Battery Type LR44H/A675 Total Harmonic Wave Distortion 500Hz ＜6% 800Hz ＜4% 1600Hz ＜1% Battery capacity/Mah...

Friday, August 16, 2019

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-D03 BTE FM Balanced Armature Loudspeaker Open Fit Hearing Aid Hearing Amplifier - Max Sound Output 130±3dB Sound Gain 40±5dB Total Harmonic Wave Distortion 500HZ<3%</span> 800HZ<5%</span> 1600HZ<1%</span> Operation Current/mA...

Friday, August 16, 2019

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-907 ITE Mini Hearing Aid Hearing Amplifier - Max Sound Output 120 ± 5dB Voltage 1.5V Sound Gain ≥35dB/28 Battery size A10 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 100 Operation Current ≤6mA Operation current/mA 3.5 Frequency...

Friday, August 16, 2019

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-116 Personal Sound Amplifier Behind The Ear Hearing Aid - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current...

Friday, August 16, 2019

NH2 HPLC columns refer to the chromatographic columns that use silica gel as matrix carrier to bond amino groups. They are usually used for the analysis of carbohydrate compounds, and the mobile phase is usually methanol, acetonitrile and buffers salt solution. - The cleaning method...

Friday, August 16, 2019

- Category - In terms of the filler type, SPE column can be divided into four applications of silicone bonding matrix, polymer matrix, absorption matrix and specialized columns. Besides, the silicone bonding has four sorts—antiphase(C18 sealing end/uncapped/hydrophile, C8), positive...

Thursday, August 15, 2019

The similarities FLASH and SPE are all column chromatography separation technology. FLASH is a fast separation mode for preparative chromatography, using optimized pre-packed low and medium pressure columns for chromatographic separation. The separation mechanism, stationary phase...

Wednesday, August 14, 2019

Quantity : 25kg - Price : FOB Qingdao 2.4-2.9$

Description of Food Grade CMC Sodium carboxymethyl cellulose (CMC/cellulose gum) is kind of cellulose ether, can easily soluble in cold and hot water, with maximum yield, most widely and conveniently used among all cellulose products. The main raw material of CMC is refined cotton and wood pulp...

Wednesday, August 14, 2019

Flash column chromatography is an alternative to long column chromatography developed in 1978. This method aims to separate the components from the mixture and thereby purify it. It is built from existing long column chromatography techniques and is time-consuming and often unsatisfactory...

Wednesday, August 14, 2019

Physical properties of the chromatographic column could affect the performance of C18 HPLC columns. - Performance factors of C18 HPLC columns: - Silica gel purity Class A silica gel has high residual silica hydroxyl with a negative charge and high metal content on the acidic surface...

Tuesday, August 13, 2019

Laboratory vacuum filtration equipment is specially designed for laboratory workers to maintain solid-liquid separation of liquid samples. Operation Procedures of Diaphragm Vacuum Pump 1. Put the glass filter flask on the stainless steel workbench, and insert the silica gel plug of...

Monday, August 12, 2019

The rapid chromatographic method is a technology widely used in the separation and purification of active target compounds, such as organic compounds, natural products, and biological macromolecules. Rapid chromatographic method has the advantages of easy-operation, low-price, and fast-analysis...

Friday, August 09, 2019

Dongjin OPzS Tubular Flooded and maintenance-free OPzV Tubular Gel batteries provide proven performance and reliability in the most demanding renewable, stationary and deep cycle telecom applications. The OPzS and OPzV batteries feature tubular grids and multi-tube gauntlets that...

Friday, August 09, 2019

A gel battery (also known as a "gel cell") is a VRLA battery with a gelified electrolyte; the sulfuric acid is mixed with fumed silica, which makes the resulting mass gel-like and immobile. Gel batteries reduce the electrolyte evaporation, spillage, subsequent corrosion problems and...

Friday, August 09, 2019

An Electric Bike is a fantastic way to reduce your carbon footprint and to be green. Dongjin group has been manufacturing suitably rated, reliable, affordable and safe E-Bike Batteries with long cycle service life, good high rate discharge performance and better float charging service...