Precision Seamless Steel tube our company offers inexpensive and high-quality steel tube and fittings. 1)Standard:GB/ASTM/DIN/JIS 2)Material: It can be altered to meet customer's different requirments; 3)Suitable for conveyance of gas, petroleum, liquid, and electricity 4)The pipes can widely used in petroleum, chemical industries, electric power,transportation for the liquid ,construction and ...