The principle behind vehicle lithium battery is to circulate electrons by creating a difference in potential between two electrodes, one negative and the other positive, that are immersed in a conductive ionic liquid called the electrolyte. When the battery is powering a device, the electrons accumulated in the negative electrode are released via an external circuit to travel to the positive electrode: this is the discharging phase. http://www.caslithiumbatterychina.com/electric-vehicle-lithium-battery/vehicle-lithium-battery/

PVC box is the shrink wrap of choice for companies with a wide range of different items as it can be used on a multitude of shapes, designs and product types. It is compatible with most shrink wrap machinery, meaning you won't need to make major changes to the current functioning of your system to accommodate it. A great all-round option that allows you to keep production uniform and is likely to entitle you to more volume discounts, bringing overall costs down to a bare minimum. http://www.clamshellpackages.com/plastic-box/pvc-box/

Fused quartz tubes and tubing are made by fusing or melting, naturally occurring quartz crystals. The crystals used are of a very high purity. This process takes place at 3632°F or 2000°C. This requires using high temperature furnace. Fused quartz tube and tubing is normally a transparent. The optical and thermal properties of fused quartz is far superior to those of other types of glass. This is due to its very high purity. Fused quartz is used in ultraviolet transmission, clear lens, and other optics for the ultraviolet spectrum. http://www.fudongquartz.com/fused-quartz-tuebs/

Disposable coverall is made of non-woven fabric and composite membrane, tightly sealed to maximize the protection of dust. One-piece protective clothing with elastic hood and front zipper closure is simple and elegant. In addition, it's easy to put on and remove the garment. Elastic cuffs, waist, ankles and hood ensure a better fit and freedom of movement. Attached hood helps provide higher standard protection. These unisex disposable garments are ideally suited for use in industrial, electronic and other environments. http://www.hiknowmedical.com/disposable-coverall/

Stainless steel is an excellent choice for hydraulic adapters and hose ends. Stainless steel is incredibly strong and corrosion resistant. It is an alloy of steel that contains more than 10.5% chromium. The chromium in stainless steel provides increased resistance to oxidation, and the resistance increases as the ratio of chromium to steel increases. The corrosion resistance in stainless steel hydraulic fittings is due to the formation of a self-repairing layer of chromium oxide on the surface of the stainless steel. http://www.huancheng-valve.com/pipe-fittings/stainless-steel-hydraulic-fittings/

DIN fitting was originally brought into line in the 1970s. It is an electrical connector, and its architecture has multiple pins under a protective circular sheath. Normally, a full-sized din connector contains three to 14 pins with a diameter of 13.2 millimetres. The term din connector doesn't refer to a specific cable. Instead, it requires all the connectors that meet the din standard. The circular connector is another name for din connector in computer electronics. http://www.hydraulicfitting-china.com/din-fitting/

As the name implies, the design of a vibrating screen is based on the principle of transmitting vibrations to the screen surface in order to separate and sort different particles by size. Regardless of the design of the machine, the principle remains the same: the vibrations break the surface tension between the particles, thus forcing them to separate. Particles that are too small in size (called "fines") fall to the sieving surface. At the same time, particles that are too large are carried on the screen surface. http://www.rotaryscreener.com/sieve/vibrating-screen/

Cotton yarn is a natural, plant-based fiber. It is soft, versatile, and breathable. Cotton fabric is one of the oldest known materials and is still a staple in the knitting industry. Cotton yarn is a great alternative for anyone allergic to wool, or who want a lighter feel to their project. Cotton dyes beautifully and hence the yarns are available in bright and rich hues. It is breathable and hence is preferred during summers. http://www.seagorcare.com/cotton-yarn/

Most solar energy vents operate exactly like regular vents, but instead of being powered by the wind, they generate energy from the sun. A regular wind-driven vent will not operate on a hot, still summer day. A solar vent will work all year round. Home appliance vents are a generic term used to cover all supply and return air sources connected to a central air-conditioning system. All registers, grilles, and returns are vents. Home and building owners don't need to know the difference between air registers and grilles. http://www.srlvents.com/adhesive-vents/home-appliance-vents/

Some of the benefits of wearing good sport shoes include less aerodynamic resistance, while having more balance, grip, and flexibility. It's not just about better performance, it's also about guaranteeing safety. Most people wrongly believe that sports shoes are all about comfort while training. It's really a type of sports technology tool that considers specific factors for a specific activity. Shoes not only optimize performance but also guarantee safety and help to prevent injuries. http://www.tssportshoes.com/sport-shoes/