The 90 degree elbows are used to connect tubes at a 90° angle. As the name suggests, the elbow is always a right-angle in shape. Such type of elbow is also known as "90 bends or 90 ells". This is a pipe fitting device that is bent in such a way to produce a 90° change in the direction of flow of the fluid/gas in the pipe. The elbow is used to change the direction in piping and is also sometimes called a "quarter bend http://www.zhijusteel.com/elbow/90-degree-elbow/

Bismuth-based: Bismuth alloys will have a composition that is less of a ductile characteristic than tin, as it can become brittle. Manufacturers use bismuth due to its expansion qualities when it melts and then solidifies as it can expand to up to 3.3%. The more bismuth is in an alloy, the more it expands. It is less expensive than other alloys that are featured and the least toxic as it can be used in applications where there is drinking water present. http://www.wocmetal.com/low-melting-alloys/bismuth-alloys/

A properly functioning HVAC system is essential to a comfortable home. While many people know how to operate their AC system, very few people know how it actually works. Your AC’s return air vent is a critical component of an HVAC system and serves several purposes. Not only do return air vents maintain your home’s air pressure and filter out debris, but they can also serve to save you on energy costs and expenses. http://www.sxcanreal.com/return-air-vent/

A PP suspended floor is a ground floor with a void underneath the structure. The floor can be formed in various ways, using timber joists, precast concrete panels, block, and beam systems, or cast in-situ with reinforced concrete. However, the floor structure is supported by external and internal walls. Supports underneath the floor are permanent and include sleeper walls or timber props placed at regular intervals. http://www.sjzwlplastic.com/pp-suspended-floor/

Piano hinges, also known as ‘continuous hinges’, represent one of the many types of hinges where 6, 7, and 8-foot lengths are not uncommon. One big difference between piano hinges and other hinge types is the fact that piano hinges will run the full length of the surface they serve – hence, the name ‘continuous’. Piano hinges are available in various thicknesses, pin diameters, widths, finishes, and customized designs. http://www.sihaimetal.com/piano-hinge/

The BLAUPUNKT Multifunctional electric hot pot is different from traditional hot pots in that it is a hot pot that can be controlled by lifting and lowering. When the food is cooked, the user can manually control the built-in strainer tray to lift upwards and separate the food from the stock. It also comes with two different baking trays for five different cooking practices. It is perfect for use in scenarios such as family gatherings, outdoor picnics, and gatherings with friends. http://www.ougebbq.com/electric-hot-pot/multifunctional-electric-hot-pot/

Hydraulic seals are essentially o-rings. However, they feature a groove within the lip that allows them to fit the components with which they are used. The groove will slide over the component to create a leak-proof seal. Even when the hydraulic cylinder’s piston moves and its fluid pressurizes, the component won’t leak. The hydraulic seal will keep the fluid within the appropriate container so that it doesn’t leak around the component. http://www.kintoweseals.com/hydraulic-seals/

Air freshener fragrances are consumer products that typically emit fragrance and are used in homes or commercial interiors such as restrooms, foyers, hallways, vestibules, and other smaller indoor areas, as well as larger areas such as hotel lobbies, auto dealerships, medical facilities, public areas, and other large interior spaces. Car fresheners are used in automobiles. As a source of odors, specific deodorizing blocks are made for toilets and urinals. http://www.fuxiongflavor.com/chemical-fragrance/air-freshener-fragrance/

They are cozy, cute, and good for the skin too. It is easy to wear and work with, and the print designs have become progressively more stylish and contemporary, so you can create long-lasting, cost-effective organic cotton garments that you are guaranteed to fall in love with. Organic cotton is also a very strong and resilient material, so any garments you create will last longer, whilst looking great - so you won’t have to worry about sacrificing quality to shop more sustainably. http://www.chinaknittingfabricfactory.com/organic-cotton-fabric/

BMT40 with Y Axis 12 Station Live Turrets have a serrated shaft that is inserted into an opening on the face of the turret. The tool is held in place by a mating part with teeth that are housed inside the turret. ; When an Allen wrench is used to tighten the locking screw, located on the face of the turret, the mechanism applies clamping pressure that holds the tool securely in place. The holder is kept from twisting by a pin that is located on the mounting surface of the turret. http://www.baowei-china.com/live-turret/bmt40-with-y-axis-12-station-live-turret.html