Sino-foreign joint venture - Ningbo Hongzhan Air Conditioner Equipment Co., Ltd. is a member of China Refrigeration and Air-Conditioning Industry Association, and has got ISO9001:2000 International Quality System Certification and has been assessed a UNIT of "Honoring Contract and Keeping Credit" of Zhejiang Province for consecutive years among industrial and commercial enterprises. We are one of the "Top ten integrity Enterprises of Assured Product Quality and Customer-satisfaction Industry of China". Our firm also drafted the Nation GB/T Standard of the People's Republic of China and Design and Installation requirements on refrigeration systems and heat pumps-hose parts and expansion joints for the vibration isolators. "Hongzhan" has a history of sixteen years of business, and has always been committed to producing decontaminating tank equipment of cen

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