ASTM A53 pipe+ASTM A10 flange/blind flange+ASTM A234 fittings DN100-DN1000
All pipes & fittings with internal epoxy coating+external bitumen impregnated glass cloth wrap.
Hunan Ronggang Steel Industry CO,.LTD is founded on 18th March,2008,with a total investment of 120 million yuan,covering an area of 40,000 square meters and the ....
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