威尼斯欢乐娱人

Textile Chemistry

As one of the four core businesses of Hongda Group, ......

Material Chemistry

Since 2001,Hongda Group has been a distinctive char ......

Biological Pharmacy

Companies in the bio pharmaceutical development alw ......

Resin & Additive

The company's business covers the development o ......

化学纺织

Rosin Ester

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化学纺织

Polyamide Resin

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化学纺织

Chlorinated Rubber

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化学纺织

Additive

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化学纺织

Plastic Additive

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化学纺织

Polyester Resin

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化学纺织

Petroleum Resin C5_C9

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