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Twin International Co., Limited Main product: Twin International,one of the biggest manufacturer and exporter of water treatment chemicals and medicine intermediates.
Certificate
Picture Certification Name Certified By Business Scope Available Date --- Expired
Date
Verified
Environmental Protection - China Quality Certification Center 2012-11-16~2015-11-15 √ Verified
CNAS - shanghai research institute 2014-03-06~2015-11-30 √ Verified
SGS - SGS-CSTC 2014-09-17~2015-12-24 √ Verified
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