Diameter直径：6d/8d/10d/16d/20d/30d
Length长度：From 2inches to 4 inches
Material材质：Q195
Finish表面处理: Bright, E.G.., C.C., V.C.,
H.D.G. and P.C.
Packing specification: Bulk (25 kgs/box) or small packing (has or does not have trademark) or according to customer request
包装规格：散装（25公斤/箱）或者小包装（有或没有商标）或者根据客户的要求