contra-angle 反角 ; 瑮

contra-angle porte-polisher 反角握柄磨光器

contra-angle handpiece [口腔] 弯手机 ; 弯车头

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

contra angle for straight handpiece 直机头用反角机头

bur assortment for contra-angle head 反角机头用牙钻套包