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| THAI INDUSTRIAL STANDARD INSTITUTE |
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| American Petroleum Institute |
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| QUALITY Management System Certification Institute (Thailand) ISO 9001/2000 |
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Lloyd’s Register Approved Manufacturer of Steel
Wire Rope |
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| Lloyd’s Register Approved Welding Consumable |
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| © 2008 USHA SIAM STEEL INDUSTRIES PUBLIC CO., LTD. |
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