Also noted that the photoptic rubber coating must be uniform, otherwise, the photoptic part of thick rubber comparison will result in not enough screen exposure not durable.

 
  • 另外给夺纲的是,感平胶涂布一定给平均,否则,感平胶比力薄的局部会变成曝平不敷,网版当然不离不耐用。
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