国产乱伦高清自拍_丰满迷人的少妇高清毛片_亚洲AV无码一区二区三区在线播放_国产美女久久影院_亚州av不卡中文_亚洲性一级av大片_亚洲三级高清在线观看_粗大猛烈进出高潮视频免费看_日韩AV无码每日更新_精品无码国产污污污在线观看

Hengsheng spinning always focus on technological innovation and sustainable development.

Changzhou hengsheng spinning and pressing metal products co., LTD. Is a professional manufacturer of spinning, stamping and lifting parts. The company has the strong research and development, production, sales of the elite team. Constant ChengXuan voltage is an innovative science and technology enterprises, innovation ability is the core of the constant pressure ChengXuan competitiveness, innovation make constant ChengXuan realized leap-forward development, constant ChengXuan pressure within the enterprise improve the innovation mechanism, formed a unique innovation culture.

The company has the domestic and foreign leading numerical control spinning technology, for many years long and foreign countries to carry on the numerical control spinning technology exchange and cooperation. The company firmly based on scientific and technological innovation, product technology research and development with great concentration, pay attention to product quality and good faith service, brought together a group of professional talents in the field of technology, formed in young and middle-aged scientific and technological elite as the backbone of high-quality scientific research team, for the continuous product research and development in practice has accumulated rich experience in product design and profound knowledge of process theory.