Otai Special Steel Co is now ISO 9001:2008 certified. We have completed the ISO 9001 auditing and our ISO 9001 certificate is released. Welcome customers all over the world to get in touch with us for yourand engineering steel requests.
Jeremy He 2016-12-04T15:43:07+00:00 February 23rd, 2016|Comments Off on ISO 9001 certificate
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