Where is the site of Cai Zhong drainage pipe?

Zhejiang Cai Zhong Pipeline Co., Ltd. (No.858, East Xinchang Avenue, Xinchang County, Zhejiang Province), Tianjin Branch, Sichuan Cai Zhong Pipeline Co., Ltd. (Nanyi Road, Chengdu Economic Development Zone), Xinjiang Cai Zhong Pipeline Co., Ltd. (Liuxihu North Road, Urumqi Economic Development Zone) and Hunan Cai Zhong Chemical Building Materials Co., Ltd. (Ningxiang County, Changsha City) are professional plastic pipeline manufacturers under Cai Zhong Group.