YMC Piezotronics Inc.,as the subsidiary of sushi testing group,is a national high-tech enterprise.We have 20 years of experience in the design and production of vibration equipment and systems for sensing vibration, testing vibration,controlling vibration.YMC, as an industry leader, has participated in the drafting of a number of national standards as the first drafting enterprise.Up to now, 176 patents have been applied for, of which 162 have been authorized (17 invention patents, 103 utility model patents, 42 appearance patents); 17 standards have been issued, 9 have been submitted for approval, and 5 have been established.