免费A级毛片无码A∨性_欧美极品少妇×xxxbbb_午夜一级毛片免费_日韩欧美大陆_同桌把我下面摸高潮视频_歐美日綜合網_精品国产福利在线观看91啪_丝袜呻吟自慰喷水直播_91精品国产人妻国语对白_人妻交换中文字幕

Established in 2011，Changzhou Alpha Machinery Manufacturing Co., Ltd is a professional manufacturer specialized in the field of testing instrument. Located in Changzhou city, Alpha is adjacent to Shanghai only 150 KM away. It covers about 3,000 square meters with more than 20 staffs. Besides, Alpha has a long-term cooperation with the local colleges which made us has a strong R&D capability. The main products are testing instruments and laboratory equipments for testing the physical and chemical properties of cotton yarn, chemical fiber, fabric, non-woven fabric, metal wire, rubber and other materials.