Hello ,We are Hebei Zhonghai Steel Pipe Manufacturing Corporation. We can produce 168-914mm Seamless Steel Pipe .All Pipes rely on API 5L /A106/A53 GR.B X42 X52 X60 .
Please add me my MSN:zhonghaisteel-pipe@hotmail.com
Skype:seeyoufriend1
Contact person :Andy Fu Mobile:15931736378 Thanks for your cooperation
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