Detalhes da empresa
Shijiazhuang Bang dong Pipeline Technology Co,Ltd.
Seamless steel pipe knowledge: 45 # seamless steel pipe
Seamless steel pipe knowledge: 45 # seamless steel pipe 45 # seamless steel pipe spot chemical composition: carbon (C) content is 0.42 ~ 0.50%, Si content of 0.17 ~ 0.se37%, Mn content of 0.50 ~...