We are qualified ISO 9001:2000 Quality Management System Co***ny. We have been appraised as "Enterprise with Top Credit Standing of 5 stars" as an official example co***ny of China Supplier Business Credit System by CIIC Credit Evaluation Office since 2008 . We also awarded "Annual Trustworthy and Faithful Enterprise" by "Hebei Province Quality Inspection Association" Since the year of 2007. Great Wall is the "Honored Trustworthy Membership" by Hebei Quality and Technology supervision Association. Also we ...