Boiler steel tube

- Carbon Steel Pipes & Fittings A106 /A53 Gr. B /API 5L/Q345 B C D E/ ASTM A671 / A672/DIN17175 ST35.8/37/52/A333GR.6/STB340

- Cylinder Rod & Honed Tubes 20# 45# 16Mn 27SiMn ST52,BK+S,DIN2391,ASTM A 106

- Alloy Steel Pipes & Fittings (12Cr1MoVG、15CrMoG、1Cr5Mo、1Cr9Mo、10CrMo9-10、A335 P5/P9/P11/P12/P22/P91/P92/WB36 )

- Boiler tube ASTM A179/A192/A210C/ A210/A213/16Mo3

JIS JIS G 3461 STB35/42/340/410/510

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