安全须知Safety Rules

收到包裹时请确认产品包装完整性；
请不要使用已经损坏(如：跌落后、磨损严重等)的产品；
使用时请佩戴护目镜，避免接触产品的尖锐部位；
在产生任何接触之前，产品必须在推荐的速度下旋转；
确保产品被稳定地安装在手柄或筒夹中；请不要施加过大的压力；
磨头请小心使用，避免摔落；所有磨头使用后建议清洁消毒。

Ensure that the package of the product is intact.
Do not use worn-out products; do not use the products after dropping.
Safety glasses are recommended.
Please avoid to touch the sharp part of the products.
Product must be rotated at recommended speed before any contact is made.
Ensure that the product is securely gripped into the handpiece or the collet.
Do not apply excessive pressure on the products. 
Clean and disinfect the products after use.