OBM square hollow section China YuantaiDerun
OBM square hollow section orifice is flat, the outer and inner walls of the steel pipe are smooth,also accept oem odm
Model:hfw-yt-079
OBM square hollow section orifice is flat, the outer and inner walls of the steel pipe are smooth,also accept oem odm
Model:hfw-yt-079
ODM square hollow section yuantaiderun(OEM OBM) orifice is flat, the outer and inner walls of the steel pipe are smooth
Model:hfw-yt-081