Skateboard shoes are more commonly used than we think. You might have owned one yourself without knowing the fact that you're wearing skate shoes. Skate shoes look cool and trendy but they are especially designed to assist skateboard riders. The sole consists of a special vulcanized rubber with minimal to no tread pattern at all. It also has a comfortable suede upper with double or triple stitching to add more durability.
http://www.tssportshoes.com/skateboard-shoes/

Metal protective vent provides our access to natural fresh air and light in built environments. Made of metal, the vent features the property of great durability and stability. Metal protective vents present an environmentally responsible, technically sophisticated and aesthetically pleasing solution to ventilation and noise management challenges.
http://www.srlvents.com/protec....tive-vents/metal-pro

Filament comes on spools, makes it easy to feed into your 3D printer. Filaments are plastic materials in spaghetti-like strands that are melted and extruded onto your printer's print bed to make your 3D model according to the specs you chose in your 3D software.
http://www.seagorcare.com/filament/

The chain conveyor can be installed in a low cost. It is suitable to transport heavy weight products at steep places. This type of conveyance can increase productivity. It has the capability of completing the task in a stipulated time frame.
http://www.rotaryscreener.com/....conveyor/chain-conve

The weld fitting can be used in place of threaded fittings, so the risk of leakage is much smaller. Weld fitting needs not to be beveled for weld preparation. The weld metal can not penetrate into the bore of the pipe. Construction costs are lower than with butt-welded joints due to the lack of exacting fit-up requirements and elimination of special machining for butt weld end preparation.
http://www.hydraulicfitting-ch....ina.com/weld-fitting