The emphasis is different. UPVC Huaya is a company under the Formosa Plastics Group and one of the first companies to do PVC water supply. Huanqi is a Taiwanese company with an industrial park in Suzhou. Huanqi’s pipelines are industrial pipelines, not ordinary water supply pipes. For UPVC civil water diversion pipes, it is recommended to choose Zhongcai or Huaya, while industrial pipes such as water purification pipes can choose Huanqi. It is recommended to use HDPE sewage pipes for industrial sewage discharge. Welcome to Zhongcai Pipeline, a high-quality pipeline system solution provider.