1 coat transparent, easy to observe the liquid level and bubble
2 according to the national standard design of 6:100 conical joints, can be used with any standard 6:100 conical head
3 good sealing performance, no leakage
4 sterile, pyrogen free
5 graduated ink adhesion is strong, does not fall off
6 unique non slip structure, can prevent the core rod from the coat out of the accident