... years experience 1,Name: Carbon steel stamping part with black oxide coating;Carbon steel stamping part;Stamping part with balck oxide coating 2,For the ... similar stamping part,what can we do ?(1), ... ,Gr.58,1010,1015,1016,1020,1045,etcAlloy steel4130,4140,G51150,etcStainless steel201,202,301,302,303,304,316, ...