Stainless steel rod material mainly (17-4PH ,17-7PH, conventional material products are: 201,202,301,301 H, 302,302 HQ, 303F, 304L, 304H, 304HC, 304F, 430F, 304,316 F, 316,316 L , 316CU, 316TI, 317,321,420,430,630,631,804,904 other domestic (TISCO, Baosteel, Zhang Pu,) of raw materials, and (Nippon Steel, NKK, Kawasaki Steel, Sumitomo Metal, Kobe Steel, Japan and the new system of world iron and other related plant) materials. rod: rod (round), square bar (square steel), hexagonal rods (hexagonal), flat (rectangular steel); bright side expensive than the black surface. large diameter of the rod more for black bar which is 303 rods in a specific material, is easy to drive (cut)-type materials, mainly used for automatic lathe cutting. another: 304F .303 CU.316F also are easy to-cut materials used in Taiwan parent company's advanced technology and equipment, imported Japan's Nippon Steel, South Korea's Posco and Shanghai Baosteel quality raw materials, finished out of first class stainless steel rods. factory produced stainless steel bar in the industry with a very good mouth beer ---- good surface finish, dimensional accuracy, material complete, complete specifications, non-calibration done enough chemical composition, tolerances, and the price is cheap, large inventory, they can always available for customers!