+86-535-2216619

+86-535-2211934

Welcome to Laizhou Huayin Testing Instrument Co., Ltd.

COPYRIGHT © Laizhou Huayin Testing Instrument Co., Ltd. ALL RIGHTS RESERVED     鲁ICP备05043721号 

>
Quality Certification

Enterprise strength

Quality Certification

Page view:

Quality Certification

Huayin is the first enterprise gaining the certification of ISO9000 in instrument industry.