国内露脸中年夫妇交换_中国黄色毛片在线观看_国国国产精品高清视频免费_人妻精品一区二区三区99仓本

Product parameter：

Multi functional combination foot control, with richer functions and more convenient operation.

Foot control has 8 sets of functions:

handpiece on/off, hanpiece chip blowing, oral light switch, spitting position, patient chair reset, rinsing bowl, mouthwash, chair position movement.