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The effect of vacuum degree on PA6 production was also discussed.
还讨论了真空度的大小对PA6生产的影响。
youdao
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Super thin invisible film, good vacuum effect, high identical degree of exposure;
超薄磨沙不反光膜，真空效果卓越，曝光传真度高；
youdao
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Super thin invisible film, good vacuum effect, high identical degree of exposure;
超薄磨沙不反光膜，真空效果卓越，曝光传真度高；
youdao