... Alloy:6063,Temper:T5, Certifications:ISO9001 IS14001 Aluminium alloy profile· Surface treatment:Mill finish,Anodizing, ... MonthYATAI Group engages in manufacturing and distributing of aluminium profiles, doors, windows,curtain walls and etc. Yatai Group covers an ... finished llines,Our production capacity exceeds 15,000MT. yatai aluminium prodcuts have won 'Certificate of Conformity of Product Quality' ...