黄色片操逼片黄片操逼片操逼,国产精品99久久久久久成人,国产精品久久久久久久密桃,国产精品一区二区三区精品,日本一区在线观看视频,免费在线观看视频专区,亚洲一区二区人妻在线,免费观看在线亚洲视频,国产又粗又大又猛又爽国产馆

Foshan Haihua Surface Treatment Technology Co.,Ltd., founded in 2005 and mainly engaged in the production of aluminum alloy oxidation additives and powder coating pretreatment additives, is a professional enterprise integrating of R&D, production and sales to after-sales service. At present, Haihua has six laboratories which including oxidation laboratory, powder coating laboratory, polishing laboratory, analysis laboratory and synthesis laboratory, simulative on-site large-scale production laboratory etc. . Our customers are of those high-end electronic consumer products, rail transit, construction and other fields.

The company has obtained many international certifications of that ISO9001 product quality system certification and QUALICOAT chromium-free powder coating product certification etc., it also obtained the attestation and title of the national "Hi-tech Enterprise", "Foshan Research and Development Engineering Center for Aluminum Alloy Surface Treatment Additives" and "Hi-tech Products".