we specializes in steel pipes and tubes, structure steel tubes, fluid steel pipes, high frequency welded steel pipes, low pressure boiler steel pipes, medium pressure boiler steel pipes, and precision steel pipes. Sizes (O.D. x T): from 10x 1.5mm to 630 x 40mm Surface: oiled or black painted to prevent rust Marking: as per customer's requirement Standards: API, ASTM, ASME, JIS, DIN, BS, EN, GB, YB Commonly used steel grade: 10, 20, 35, 45, 20CrMo, DZ40, 40Mn2, API A53Gr.B, A106Gr.B, API 5LB, X42, X46, X52, SPHC, 08AL, , Q195-235, M8, 304, 304L, 321, 316, 304, 316L, 321, and 310S In the face of the steel pipe market with limitless potentiality, in order to expand market share further, we are extensively advertising for overseas agents sincerely.