The material choice, moulding method, joint principle and shape design of hinge joint, hasp joint, clamp joint and press fit joint of normal plastics were introduced.

• 介绍常用塑料铰链联接、搭扣联接、卡夹联接、压力装配联接的联接件材料选择、成型方法、联接原理、形状设计等。