Hangzhou Hongyan Pigment Chemical Co.,Ltd
Specialize In Pvc Panels For Domestic and Commercial

Phone:571-82890877

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The company is a local leading valve manufacturers

  • Company Information

    HANGZHOU HONGYAN PIGMENT CHEMICAL CO.,LTD. Was established in 1991. We are national high-tech company. Hongyan has obtained ISO 9001 -2008, ISO 14 001:2004 and GB/T 28001-2001.With annual capacity is 10000mt/year, we mainly produce Azo, Diazo, Lake,Toner pigment, covering more than 100 kinds of color index pigment which are widely used for printing ink, paint, plasticetc industry.

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  • What Are The Heat Resistance Properties Of Or...

    ​Organic pigments in the plastics industry has been widely used, however, plastic coloring with organic pigment performance evaluation indicators are still using ink

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  • What Are The Main Factors Affecting The Impac...

    (1) trace of aromatic amines: the production of organic pigments, inevitably there will be trace amounts of aromatic amines

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