Cangzhou ever and is tube industry Co., LTD. In the production and sales of seamless steel tube, implement GB / 8162, GB/T8163, GB / 3087, export standard ASTM A106 / A53 API 5 L Gr. B, DIN 17175 DIN1629/2448 specifications: 13.7 820 * 2.0-50 mm main material: 10, 20 # # #, Q345, 45, ST35.8, ST37, ST42, ST45, ST52, A53 A106 A192, A179,,, A210, API 5 L/Gr. B, another specializes in the production of the domestic API5CT J55 / K55 / N80 / L80 / P110 oil casing, the P1 / P2 / P11 / P12/12 Cr1MoVG, 15 CrMoG, 30 CrMo, 10 CrMo910 P22), Cr5Mo (system), (Cr9Mo (P9), P11A335P91 (T91) alloy seamless steel pipe, tube welding seam ERW straight, spiral pipe, galvanization steel tube, 2 PE / 3 PE anticorrosive steel tube, and with quantities inventory for the customer to choose, reliable quality, reasonable price, welcome you to come and buy!!!!!