当停止中空机器设想时，要熟悉到中空机器加工与单壁成品加工（注塑模塑加工）是完整差别的。胜利出产成品的第一步是要领会吹塑中空成品规划的优错误谬误和如何最好地建立最好的规划情势。当用吹塑体例加工一个成品时，设想者起首必须肯定中空成品的双壁规划。

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