... M3-M33 1. Treatment: cold forging/hot forging2. Materials option: Stainless Steel C276, 904L, 304, 304L, 310S, 316, 316L, 321 ... , 254SMO, AL6XN, 1. 4501, 1. 4529.Super duplex stainless steel F55, F51, F53 HastelloyB & C, Inconel, Incoloy etc.3 ... Standards: GB, DIN, JIS, AISI/ASTM/ANSI/AMSE and BS EN, etc.4. Packing: Cartons then pallet, ... etc.6. factory price, accept small order and short delivery time