Injection moulding of bottle CAPS is distinctly different from that of preforms in that it is thin-wall moulding.
与瓶坯注塑截然不同，瓶盖的注塑是薄壁注塑。
Parison wall thickness programmer is one of the key elements in blow moulding machines.
型坯壁厚控制器是塑料中空成型机的关键部件之一。
Solid polyurethanes are similar to injection moulding materials, and more suited to thinner wall sections.
固体聚氨酯类似注射成型材料，更适合薄壁截面零件。
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