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January 17, 2018

GB/T8814-2004 has specified the appearance quality of profiles. Although the specific values or grades of surface brightness have not been put forward, the surface brightness of profiles has attracted more and more attention from customers. There are many factors affec...

January 3, 2018

Transparent PVC products, if they are impregnated by water, or outdoors, or by bending and stretching, will produce albinism and lose transparency.

1 water whitening

Many types of transparent PVC products exhibit a white, foggy and turbid appearance when they are in cont...

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The role of the three functional zones of the PVC extruder

March 18, 2019

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