Some people think that the fewer times of mold trials, the better the mold quality? In fact, the real value of mold trials is to discover mold design defects and adjust injection molding parameters. Through mold trials, potential problems such as product shrinkage, flash, and dimensional deviation can be exposed to avoid losses during mass production. The key to mold trials is not "less trials" but "one trial solves one problem."(Fewer mold trials ≠better mold quality)