GREAND ( shanghai) New Material Technology Co., Ltd. It is a wholly-owned subsidiary of Yunfeng Pipe Industry Co., Ltd. established in Fengjing Town, Jinshan District, Shanghai in 2022.

Based on Yunfeng Pipe Industry Co., Ltd.'s more than 20 years of R&D and production experience and foundation in the pipeline industry, in 2022, it invested in the launch of 2 world-leading continuous winding glass fiber reinforced plastic sand pipe production lines, covering various specifications of DN300-DN2600.It is one of the professional glass fiber reinforced plastic sand-clamped pipe manufacturers in China with both continuous winding technology and fixed-length winding technology, and has become the country's leading provider of comprehensive glass fiber reinforced plastic sand-clamped pipe application solutions.The company provides professional innovative technologies and product solutions for glass fiber reinforced plastic sand-clamping pipes to many water companies and municipal enterprise customers in many regions of the country.