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    About Bosin
    Quality System
    includes ISO9001:2000, Europe PED 97/23/EC, SO14001-2004, OHSAS18001-2001, API5CT ...

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    Production Capacity
    With the outside diameter ranged from 2 3/8" to 13 3/8",and the steel grades of H40, J55/ k55, N80, L80, P110...

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    Equipment
    The company have two Φ90、Φ50 hot piercing machine、three end forming machine,nineteen cold ...

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    欧美黄色网
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