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Tianjin United Steel Pipe Co.,Ltd
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About Us
We are specialized in producing ERW round carbon steel pipes according to API 5L , API 5CT,ASTM A53,ASTM A252,ASTM A500,EN 10255,EN 10217,EN 10219 etc.The outside diameter is from 1/2" to 14".We have got API certificate and EN certificate.
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