DIFFICULT - 2089 Annonces

Mardi 10 septembre 2019

1. Advantages and disadvantages of commonly used extraction solvents Acetonitrile: easy to salt out; compatible with LC/MS; difficult to concentrate Acetone: not easy to salt out; easy to volatilize, concentrate Ethyl acetate: immiscible with water; less extraction of impurities;...

Samedi 07 septembre 2019

product features: Fully automatic hydraulic design-automatically up and down, grip and pull. Made of alloy steel with super-high strength; double-acting hydraulic design. Used for dismantling large shafts and perforating work pieces. Available in 2 and 3 jaws design allows adding...

Samedi 07 septembre 2019

There are bubbles in the mobile phase, the pump is turned off, the pressure relief valve is opened, the purge button is turned on, the degas is cleaned, the bubbles are continuously ejected from the HPLC column, and the mobile phase enters the mobile phase. No matter how many times...

Vendredi 06 septembre 2019

Quantité : 1000 pcs - Prix : USD80-USD230

Commercial Delivery Drones Use Architecture and construction Architectural firms and construction contractors are also benefitting from the use of best drone for 4k video. Much like professionals in real estate, architects can use images and footage of a property to create 3D renderings...

Vendredi 06 septembre 2019

Quantité : 1000 pcs - Prix : USD80-USD230

Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors), or synchronous DC motors, are sensored brushless motor powered by DC electricity via an inverter or switching power supply which produces an AC electric current to...

Vendredi 06 septembre 2019

Prix : USD0.5~30

A fake fur earmuff is a must have when in a badly cold winter. When covered by the custom ear warmers, your ears are well protected from frostbite. Furthermore, this earmuff style could give the wearer a sense of fashion by coordinating with the clothes, bags, earrings, glasses, etc...

Jeudi 05 septembre 2019

Exothermic welding, also called hot melt welding, fire-clay welding, thermite welding and explosion welding, is a high-heat principle that utilizes the redox reaction between metals, the operation of which is simple, easy to learn, safe and efficient, and it has significant results...

Mercredi 04 septembre 2019

Quantité : 6000pc/mon - Prix : $90-$350

Black bridesmaid dresses is one of the most popular and safe color that brides will pick.If you find it's really difficult to pick a color or being in a last minutes,then black color is your best choice,as it will never conflict with your wedding theme,and black looks great on most lady...

Jeudi 29 août 2019

Wool carpet is a carpet made of wool as the main raw material. It is a high-grade product in carpet. It is generally used in high-grade hotels, meeting rooms, reception rooms, villas, national venues and other high-level places. - Function Of Wool Carpets - - 01 Easy To Handle And...

Samedi 17 août 2019

Quantité : 500kg

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

Samedi 17 août 2019

Quantité : 500kg

A functional insulator coating to protect insulators in pollution area, such as industrial area, coastal area and other extreme environmental conditions, also can be used in normal environmental conditions. RTV-II/ PRTV is a one part and new type Room Temperature Vulcanizing RTV silicone...

Jeudi 15 août 2019

Bottle-top dispenser, also known as bottle-top distributor and bottle-top pipette, is an instrument for accurately measuring liquid chemicals. It is generally divided into automatic bottle-top separator, continuous bottle-top separator, glass separator, bottle-top separator, bottle-top...

Jeudi 15 août 2019

Background Technique The wood pulp with a characteristic of single fiber, has been serving as the only raw material of the quantitative filter paper. To improve its filtering accuracy, the pore size has to be reduced, which can increase the filtering resistance and shorten the practical...

Mardi 13 août 2019

Pipettes are widely used in the laboratory. Proper operation and use of pipettes can improve work efficiency. What are the six common operational misunderstandings of pipettes? Pipettes are widely used in laboratories. The correct operation and the use of pipettes can improve work efficiency...

Samedi 10 août 2019

Quantité : 10000 - Prix : 1-10000 USD

The working principle of the electrostatic dust collector is to use the high voltage electric field to ionize the flue gas. The dust charge in the air flow is separated from the air flow under the action of the electric field. The negative electrode is made of metal wires with different...

Jeudi 11 juillet 2019

The formation of a flash phenomenon The boiling point of water is higher than 100℃ when the water is heated under a certain pressure. The higher the pressure, the higher the boiling point of water and the higher the heat content. When the pressure decreases, some sensible heat is released...

Jeudi 11 juillet 2019

The formation of a flash phenomenon The boiling point of water is higher than 100℃ when the water is heated under a certain pressure. The higher the pressure, the higher the boiling point of water and the higher the heat content. When the pressure decreases, some sensible heat is released...

Mercredi 03 juillet 2019

Capsule filters are available in various sizes and can be autoclaved, which have four interfaces, two of which inlet and outlet of the filtered liquid are in the middle. One of the two sides is a vent, the other is a drain. Features of capsule filters 1. 1/4 male thread interface...

Jeudi 20 juin 2019

Extraction is often susceptible to matrix interference. One analytical method is fine in this matrix but can become problematic in another matrix. If we encounter such a situation, how can we improve the QuEChERS method to overcome it? For pesticide residues, most of the food samples...

Mardi 18 juin 2019

In laboratories where the pipe ttes are used frequently, it is often heard that the sound of tapping the tips is one after another, adding a bit of music to the boring laboratory life. When you look into it, the user is afraid that the tip can't be tightened. After the tip is attached...

Vendredi 07 juin 2019

- The Application and Usage of Impact Crusher: - Impact crusher is suitable for materials whose compressive strength is under 350Mpa, and particle size is less than 500mm.Impact crusher is widely used for sand and rock producing in the industries of roads, railways, reservoir, electricity...

Mercredi 05 juin 2019

Here we talk about the following four kinds of common filter papers about their constitution and characteristic that we can distinguish them. The first one is PP filter paper. PP filter paper is made from polypropylene as the raw material through a proprietary hot melt process, which...

Mercredi 22 mai 2019

Quantité : 1 - Prix : 8000-15000$

CNC Router Machine Price with ATC Tool Changer R4 Product Description German Siemens controller Siemens servo motor 4 tools top quality ATC cnc router for wood aluminum mdf plastic cutting milling Product Application: * Furniture: wooden doors, cabinets, plate, office and wood furniture...

Mercredi 22 mai 2019

Quantité : 1 - Prix : 5000-10000$

Three spindle wood engraving machine Product Description German Siemens controller Siemens servo motor 3 tools top quality ATC cnc router for wood aluminum mdf plastic cutting milling Product Application: * Furniture: wooden doors, cabinets, plate, office and wood furniture, tables...

Mercredi 22 mai 2019

Quantité : 1 - Prix : 2500-4000$

wood engraving machine price 1325 Product Description router cnc 1325 low price machine cnc router carving machine for wood furniture Product Application: * Furniture: wooden doors, cabinets, plate, office and wood furniture, tables, chair, doors and windows. * The wood products: voice box...

Samedi 18 mai 2019

R6 wood cnc router machine Product Description Professional Kitchen Cabinet Production With Fam Drilling Bank Woodworking Cnc Router Introduction The Alpha CNC Router is the perfect solution for applications requiring board process and this machine is specially designed for curve surface cabinet...

Vendredi 17 mai 2019

Quantité : 1 - Prix : 1500-2500$

6090 wood cnc router machine/cnc router equipment/advertising carving machine Product Description - Mini CNC Router 6090 6012/ Small CNC Milling Machine / Router CNC Wood Acrylic Stone Metal Aluminum with Mach 3 DSP controller - Product Application: It is widely used in processing wood...

Vendredi 17 mai 2019

Prix : 1500-2500$

6090 desktop cnc Product Description - Mini CNC Router 6090 6012/ Small CNC Milling Machine / Router CNC Wood Acrylic Stone Metal Aluminum with Mach 3 DSP controller - Product Application: It is widely used in processing wood, acrylic, dual color board, plastic, stone, glass, metal (aluminum...)

Mardi 14 mai 2019

Quantité : 50 - Prix : 50-70

Description: 1.charateristics: Advantages: high strength, low density, good mechanical properties, good toughness and fine corrosive resistanc e. Disadvantages: poor process performance, difficult in cutting and machining, bad abrasion resistance, complex production process and...

Vendredi 03 mai 2019

Quantité : 30000 - Prix : 1,60 €

Please find here with the following stock on hand for exports: 1) Men T-shirts 15000 Pieces Price USD 1.30/Pc 2) Men Sports shoes 15000 Pair Price USD 1.65/Pair 3) Ladies Sports shoes 1800 Pairs Price USD 2.65/Pair. Stocks are ready to Load and please ask for the pictures while...