易开安全瓶盖及其他闻文“罐头好吃瓶难开”．具有良好紧固密封性的“胜利盖”确有难开的缺点，于是便有易开的“旋压盖”的出现．但是“旋压盖”的紧固密封性能不如“胜利盖”好．从而也减少了保质时间．另外，旋压的程度也难掌握，施得不够无法密封．旋得过紧又有了难开... Easy to open the safety cap and other Wen Wen “canned good bottle difficult to open.” The “Victory Cap”, which has a good tightness and tightness, does have the drawback of being difficult to open, so there is the easy opening of the “Spiral Cap”. But the “screw cap” tightening seal performance is not as good as the “Victory cover”. This also reduces shelf life. In addition, the degree of spinning is difficult to grasp, not enough to seal. Spin too tight and hard to open ...