æ å(Standard): DIN934, ISO4032-4036, GB6170, ASME/ANSI B18.2.2, GOST28919, JIS B1181, etc.
ç级(Grade): 4, 6, 8, 10, 12, A2, A4
表é¢å¤ç(Surface Finished): Black, sting, Zinc Plated, HDG, Dacromet,Teflon
è§æ ¼(Size): M5 - M100, 1/4" - 4"
ææ(Material)ï¼Q195, Q235, 10B21, 35K, 45#, 40Cr, 35CrMo, 42CrMo, SS304, SS316, etc.