1. Guangdong Sanhe Pipe Pile Co., Ltd. ranks first among the top ten pipe piles in China, and its address is located at No.30 Tongxing East Road, Xiaolan Town, Zhongshan City.
2. Jianhua ranks second among the top ten pipe piles in China. Jianhua pipe pile is a professional manufacturer of prestressed concrete pipe pile for building foundation engineering materials. It was established in Xiaolan Town, Zhongshan City, Guangdong Province on February 1993.