The core material can use low-viscosity materials to reduce ** pressure.
Considering environmental protection, the core material can use recycled secondary materials.
According to different usage characteristics, for instant,for thick product,skin layer material shall use soft material,and core material shall use hard material or foamed plastic material to reduce weight.
Use lower quality core material to reduce cost.
Skin layer material or core material can use expensive special surface material, such as anti-electromagnetic interference material,high conductivity material and others to increase product performance.
Suitable skin material and core material can reduce the residual stress of molded products, increase mechanical strength or product surface performance.
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