A)     two-color mold large-size products, the design of the best before the first MOLDFLOW analysis to determine the size and location of the inlet port and determine the high temperature and gas to determine the cooling system and exhaust system
B)      For the first injection and the second injection of the edge of the design needs special treatment, and special attention, how to avoid sealing problems, some products do not allow decorative groove, so the mold design needs to be specially extracted to discuss the optimization design
C)     For the sealing position need to use precision machining equipment such as high-speed CNC and mirror EDM and precision slow WIRECUT to ensure its processing accuracy, it is best to design interchangeable inserts.
D）  Two-color plastic mold finished bit of the sealant is particularly important, and the finished plastic 3MM within the steel material must be strengthened, otherwise it will not withstand the impact of finished glue.