acute angle handpiece 锐角机头 ; 弯机头

contra-angle handpiece [口腔] 弯手机 ; 弯车头

right-angle handpiece of dental engine 牙钻机直角机头

contra-angle handpiece of dental engine 牙钻机弯机头

fixed contra angle handpiece 固定式反角机头

adjustable contra-angle handpiece 换向式反角机头

right angle handpiece 直角机头

acute e angle handpiece 锐角机头