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Hi-tech Enterprise Certificate
Issuing authority : Hangzhou Science& Technology Bureau
Valid period : 2010/7/30 - 2013/7/30
Hi-tech Enterprise Certificate
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Certificate of QMS
Issuing authority : China Quality Certification Center
Valid period : 2006/7/15 - 2015/7/1
ISO9001:2008
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Certificate of Patent
Issuing authority : SIPO of the PRC
Valid period : 2004/7/7 - 1900/1/1
Direct Coal-fired Hot Air Furnace
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