Dongguan Dayu Pipe Pile Co., Ltd. is located in Dongguan, a renowned manufacturing city in China. With the corporate mission of "serving society and benefiting the people," the company primarily produces fiberglass reinforced plastic (FRP) sandwich pipes with inner diameters ranging from φ300 to φ4000, which are used in water diversion, water supply, sewage, pollution control, and interception projects. The company owns six production lines for large-diameter FRP sandwich pipes, with an annual output capacity exceeding 80,000 tons, ranking first in the industry. Guanghui Company has participated in hundreds of large and medium-sized construction projects both domestically and internationally. Due to the effective implementation of its business philosophy, which prioritizes social responsibility and product quality as the lifeline of the enterprise, the company's production management system, technical support system, marketing system, and after-sales service system have won social acclaim, establishing the "Guanghui" brand of FRP pipes. The company has passed the ISO9001:2000 international quality system certification. It advocates the corporate spirit of "unity, pioneering, pragmatism, and striving for strength," adheres to the corporate mission of "serving society and benefiting the people," and is dedicated to providing customers with the highest quality and most reliable products and services.