The principle of blow molding for automotive parts water tanks and injection molding are relatively complex structures that should be widely used. Blow molded products are generally used for hollow products, as shown in the picture. The bottle body is large and the mouth is small, and injection molding cannot remove the core. Compared to PC, PP and PC are meaningless as they are both non-toxic and harmless products at room temperature. PP is usually used for low temperature, fruit juice, and dairy beverages, and is blow molded in one go. PC has strong resistance to temperature and impact, making it very convenient to brew tea and hot drinks with hot water
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