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1 2 x 1 2 square tubing Black Carbon Steel

1 2 x 1 2 square steel tubing

1 2 x 1 2 square steel tubing

1 2 x 1 2 square steel tubing factory YuantaiDerun(oem obm odm) orifice is flat, the outer&inner walls of the pipe are smooth

Model:1 2 x 1 2 square metal tubing