Changsha Changsha County Hunan Coatings PolyHe Products Metal Packaging Coatings Production Metal Packaging Materials Metal Materials Packaging Materials Zi Ran Zi Yuan Fine Chemicals Automobile Coatings Coatings Technology Coatings R&D驰名商标省级高新技术企业副会长单位常务理事单位理事单位高新技术企业ISO9001认证ISO14001认证