As an excellent enterprise, the Liping Tianjin Steel Pipe Sales Co., Ltd., specializes in business: Seamless steel pipe 20 #, 35 #, 45 #, X42, X60, X80, Q235, Q295, Q345, etc., stainless steel seamless pipe, alloy steel pipe and oil pipe (casing and tubing) steel tubes, fluid tubes boiler tubes, high-pressure boiler tubes, fertilizer tubes hot dip Galvanized Coil : SGCC,SPCC,DC51D,DC51D+Z,DC52D+Z etc., hot dip galvanized steel, galvanized pipe, square pipe, H- section steel: Q235B, Q345B, C ...