精品国产一区二区三区av性_韩国美女豪爽一级毛片_亚洲国产91在线一级毛片_精品不卡一区二区三区视频_欧美成人精品福利在线视频_影音先锋主播另类_精品免费在线观看_在线日韩av中文_日韩人妻制服av_可以免费看的黄色免费网站

◆ Operation policy

'Skilled in work", 'Craftsman in heart",'Quality in practice", "Maintenance in constant".

◆ Quality Policy

Craftsmanship, quality excellence, innovation and progress, customer satisfaction.

From the technical strength, to the industrial supporting and the machining scale，Pinwei always walk in the forefront of the industry，continue to keep the leading position .innovate and expand the leading edge continuously.