产品特点：
定量注射器采用医用PC材质；可固定用量使用；20ml；30ml。
彩色注射器采用医用PC材质；3ml；6ml；10ml；20ml。
PRODUCT FEATURES:
The quantitative syringe is made of medical PC material; Can be used in a fixed amount; 20ml; 30ml.
The color syringe is made of medical PC material; 3ml; 6ml; 10ml; 20ml.