Zhejiang Zhongcai Merchants Investment Group Co., Ltd. Zhongcai, established in March, 1995, is the leading PVC profile, pipe and UPVC window and door manufacturer in China with investments in four factories, which covers an area of 370, 000 square meters, in Hangzhou, Shaoxing, Tianjin, and Xi'an respectively. Zhongcai International Trading Co., Ltd is set up in Lujiazui District of Pudong Shanghai. Zhongcai is qualified for the whole process of designing, die-making, testing, manufacturing, quality inspection and control, packing, and after service-supplying. The annual production and sales take the lead in China and our products are exported to more than 30 countries and regions.