Introduction One of the most common methods of converting plastics from the raw material form to an article of use is the process of Plastic Injection Mold. This process is most...

  Clad Steel Plate is a composite steel plate made by bonding stainless steel, etc. (cladding material) to either or both sides of carbon steel or low-alloy steel (base metal). Cla...

  Propolis is a resin that bees create. It contains a mixture of bee saliva, beeswax which can be used into beeswax candles, and substances from plants and trees. Propolis may have...