1. The surface of the product is smooth and clean, without obvious defects such as flash, burrs and shrinkage pits;
2. Product moisture content: (0.5-4%);
3. Adapter lock clip sheet metal thickness 0.8-2.5mm, strapping diameter Φ5-35mm;
4. Product performance requirements: belt insertion force ≤ 20N, anti-back force ≥ 120N, tensile strength ≥ 150N;
(Test environment: normal temperature, water content: in accordance with the requirements of item 2)