客服在線QQ:34544356
外六角螺栓
材質(zhì):碳鋼 A3,35,45,40C4R,FCM45,SS304, 304L,316,316L,C3-80
規(guī)格:M4-45X10-600M
級別:4.8,8.8,10.9,12.9
表面:本色,發(fā)黑,鍍鋅,達克羅