Qinhuangdao Zhongyan Machinery Co., Ltd.
Spiral Pipe
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API 5L GRB spiral welded steel pipe, used in oil and gas projects -
400mm diameter sch40 api 5l x52 ssaw spiral welded steel pipe for dump tube -
48 inch astm a53 grade b welded pipe for dump tube boiler tubes -
Trade Assurance Supplier 600mm diameter a 53 tube pipe manufacturers -
28 inch carbon steel astm a53 grade b spiral tube pipe for plumbing materials -
32 inch schedule 80 carbon steel helix tube pipe price -
DN500 diameter astm a36 steel pipe tube spiratron for natural gas steel pipe
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42 inch Q235 thin wall spiral welding pipe for drainage pipe chimney pipe vent pipe
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ASTM A53 grade b carbon steel saw spiral welded pipe standard length -
Schedule 40 spiral seam steel pipe roughness, Tube welding for petroleum pipe -
Large diameter ASTM A53 carbon steel welded pipe line price -
1000mm diameter ssaw carbon steel pipe for the oil and gas -
China products Q235 schedule 40 weld spiral steel pipe price -
spiral welded pipes 48 inch as oil and gas pipe -
800mm diameter api 5l x 70 spiral tube and pipe -
api 5l x65 psl2 ssaw steel pipe for prtroleum pipe -
api 5l x42 spiral welded pipe as underground line pipe -
astm a53 grb 1500mm large-size spiral welded steel pipe for oil transportation -
Spiral Welded Steel Pipe for oil and gas manufacturing -
GB Q195 Q235 Q345 ssaw spiral welded steel pipe for oil and gas manufacturing