Ri-Heng is a professional quality surface protection film of high-tech enterprises, all of the introduction of high precision machinery.

日恒公司是一家专业从事优质表面保护膜的高新企业，全部引进高精密度机器设备。

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U type protection: made of PVC, is closely linked to the special keel to increase the contact surface with the smallpox soft film and extended product protection, the use of time.

型保护条：采用PVC制成，紧扣在专用龙骨上以增加与天花软膜的接触面，保护并延长产品使用时间。

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The title additive can change the surface tension of paint film and can obviously improve the properties of edge corrosion protection for cathodic electrodeposition paint.

合成一种助剂添加在阴极电泳涂料中，改变漆膜的表面张力，能够使涂料的锐边防护性能明显提高。

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