... 5.Material: stainless steel,alloy Features: 1.bar, special alloy product, stainless steel bar.2.Standard:ASTM B408,B425,B670 ... Jiading,Jinshan and Jiangyin. The company mainly machine special alloy material,special alloy products and forgings, and it own complete ... from smelting,forging,final machining to inspecting about special alloy. Special alloy fastener mainly contain bolts,screws,nuts,washers ...