... ,YWN15,YGX15,YGX1,YG8T,YG15C,YG20C1:Characteristics of Alloy moulds:A: Hard alloy with high hardness,resistant to oxidation, high ... temperature,acid and alkali,B: Electroplated emery wheels and moulds;C: Moulds with optical fiber or nylon;D: Special hard alloy ... magets as well as batteries.One of the National 6.5 projects certified by a national institute.YGX1:Used in stretching and reforming ...