| The Hebei Yuan becomes the steel pipe (industry) the Limited co***ny specialized production two-sided submerged-arc welding spiral steel pipes. Specification: D219-D2420กม6mm-32mm, material quality: Q235, Q345, 16Mn, 10#, 20#, L240, L290, L360, X42-X65 and so on. And may provide for the user D406กม22mm--D2420กม32mm the spiral steel pipe, welcome the new old customer to come the electricity incoming letter. Also manages: The seamless steel pipe, the straight seam steel pipe, grip the steel pipe, to expand the steel pipe hotly hotly. |
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