Our company have got the API CERTIFICATE and ISO 9001 CERTIFICATE. Hope to create a long term business relation with you. Liaocheng Jingxin Seamless Steel Tube Make Co.,Ltd. ASTM A106 GrB steel tube price terms:FOB Qingdao USD955--1300 minimum order:25Ton terms of payment:L/C T/T specification:OD21.3mm---355.6mm(1/2"--14") standard: ASTM A106 GrB ASTM A53 GrB SAE 1020 SAE1045 JIS G4051 DIN ST45-8 DIN ST42-2 Technic:cold drawn and hot rolled length:5.8m for 20ft container 6--12m for 40ft container

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