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July 17, 2017

PVC calendering transparent sheet is one of the main varieties of hard PVC. It is usually produced by conical twin-screw extruder. The problems encountered in the process of production are: bubbles,crystal spots, yellow color of sheet material and so on. I according to...

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The role of the three functional zones of the PVC extruder

March 18, 2019

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Tongxiang Longcheng Plastic Co.,Ltd