44Refined management and quality controlCreate a benchmark for the high-end aluminum alloy raw materials industry Qualifications Home / Qualifications Zhenhan 6061-T6 aluminum rod Zhenhan 6061-T651 aluminum tube Zhenhan 6063-T6 aluminum tube Zhenhan 6063-T651 aluminum rod ISO9001-Quality-System-Certificate 3A-Enterprise-Certificate Credit-Certificate Enterprise-credit-certificate Heavy-Contract-Credit-Certificate Model-Unit-Certificate Quality,-integrity-unit-certificate China-Bidding-Credit-Certificate