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...