Established in 1999, Beijing Cheng-Cheng Weiye Science & Technology Co., Ltd. is a professional manufacturer specializing in ultrasonic transducers, ultrasonic apparatuses and piezoelectric ceramic. Especially, in 2004, we had researched and...

Established in 1998, we are a professional manufacturer and trader specializing in vacuum cleaner accessories. We can supply a wide range of vacuum cleaner accessories, including paper bags, extension tubes, hoses, parquet brushes, floor brushes and...