国产老熟女伦老熟妇露脸-四川少妇大战4黑人-又色又爽又高潮免费观看-精品一区heyzo在线播放-亚洲精品久久久久成人2007

◆ 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.