1 Jinde (China Famous Trademark, Chinese Famous Brand, China Environmental Labeling Product Certification, Top Ten Water Pipe Brands, Jinde Pipe Industry Group)

2 Kangtai (China Famous Trademark, China Famous brand, China Environmental Labeling Product Certification, Top Ten Water Pipe Brands, Top 500 Chinese Brands, Kangtai Plastic Group) 3 Nanxin Pipe Industry (China Famous Trademark, Top Ten Water Pipe Brands, Zhejiang Nanxin Plastic Co., Ltd.)

4 Weixing (China Famous Trademark, China Famous Brand, Top 500 Chinese Private Enterprises, Top Ten Water Pipe Brands, Weixing Group Co., Ltd.)

5 Golden Bull Horn (China Famous Brand, High-tech Enterprise Certification, Top Ten Water pipe brand, Wuhan Jinniu Economic Development Co., Ltd.)

6 Rifeng (Chinese famous brand, Chinese well-known trademark, Guangdong famous brand, Guangdong export famous brand, Rifeng Enterprise Co., Ltd.)

7 Chuanlu (top ten water pipe brands, high-tech enterprises, environmental labeling certification, Shanghai Baidie Pipe Technology Co., Ltd.)

8 Liansu (Chinese famous brand, Chinese well-known trademark, top ten water pipe brands, well-known in the industry Brand, Guangdong Lessu Technology Group)

9 Zhongcai (China Famous Brand, China Well-known Trademark, Key High-tech Enterprise, Zhejiang Zhongcai Pipeline Technology Co., Ltd.)

10 Gu Di (China Recommended products for green and environmentally friendly building materials, Shanghai famous building materials products, Shanghai Jinsu Industrial Co., Ltd.)