大陆精大陆国产国语精品 ,無码一区中文字幕少妇熟女网站 ,CHINESE国产AV,成人亚洲一区二区色情无码潘金莲

In the electronic manufacturing industry in China, we are one of the earliest to obtain ISO9001 international quality standard system certification. Production process and quality management strictly follows the international standard; We have been given the ISO4001 international environmental management standards system certification. Non-toxic, green-zero discharge has been our goal, because we believe that excellence is not only quality but it have to environment friendly too.