Answer: 1. From the overall point of view, the appearance of the blockade (common name wire seal, seal seal, one-time lock, etc.), the clarity of the word, the wire head - that is, whether the wire tip has burrs!
2. What kind of material is the plastic layer of the outer bread? The most common use that can be used in spring, summer, autumn and winter is (ABS-757K). No matter which process is cut corners, the price of the product can be greatly reduced. It is hoped that customers will choose products with caution.
3. What kind of material is the inner part of the plastic bag? The materials appearing on the market now include ball-nosed alloy, die-cast aluminum, and A3 steel. From the aspect of pulling force , A3 steel is the best material of many materials, the first two All kinds of materials can be smashed with a hammer.
Zhoushan Jinsheng Bimetallic Plastic Machinery Factory , https://www.jinshenggalloy.com