日本学生一级无码免费毛片多人

QUESTION/ANSWER

LOCATION:HOME > QUESTION/ANSWER

Performance characteristics of plastic cover

PUBLISHER:Mengzhou Zhongfu Packaging Technology Co. , Ltd.  CLICK:986

  The performance characteristics of plastic cover: 1. The top and inner wall of general plastic cover are provided with a ring-shaped leak proof ring; there are also general plastic barrel covers that need to be matched with the inner cover, so there is no need to design the leak proof ring;

  2. The lower end of the plastic cover is connected with an anti-theft ring through a tensile reinforcement;

  3. At the same time, several pieces of gyrotron wings are evenly distributed on the inner wall of the guard ring;

  the plastic barrel lid designed by this way has strong sealing, leak proof and anti-theft performance, and is safe and convenient to use. It can effectively prevent the liquid in the container from being polluted externally and ensure that all kinds of liquid products are in line with the national safety standards.