1).grade:201,202 01,302,303, 308,309,310, 21,410,416,420,430,etc.
2).dimension:as customers' requirement.
3).surface:bright/pickled/polished/peeled/black/mill / electrolysis etc.
4).standard:  etc
5).chemical composition: according to international standards of  ER , GB ,etc.
6).technology: cold drawn,hot rolled,drop forged.
7). hot /cold rolled in our factory directly.