What are the general components of injection molds

A. Forming device (concave mold, convex mold)
B. Positioning device (guide pillar, guide sleeve)
C. Fixed devices (I-shaped boards, code pits)
D. Cooling system (water outlet)
E. Constant temperature system (heating tube, heating wire)
F. Flow channel system (nozzle hole, flow channel groove, flow channel hole)
G. Ejection system (ejector pin, ejector rod, etc.)