• CANGZHOU SIJIN INTERNATIONAL TRADING CO.,LTD

    #Sijinpiping ,Pipe class: High school low pressure thick wall alloy steel, carbon temperature #sijinsteel ,pipeline steel elbow push system, hot pressing ball elbow, straight segment 1 D add 1.5 and section of the hot-pressing tee, cold extrusion reducer, ellipsoid cap, spherical head, U ...

    Telephone:15632773869

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