The most complete mold acceptance standard in history!
1. Appearance, size and fit of the molded product 1. Defects on the product surface are not allowed: lack of material, burnt, top white, white line, peaking, blistering, whitening (or cracking, breaking), baking, and wrinkles. . 2. Welding mark: Generally, the length of circular perforation weld mark is no more than 5mm, and the length … Read more