Is the quality of yonggao the same as that of AD?

It's different. Gong Yuan Yong Gao is an enterprise located in Taizhou, Zhejiang Province, mainly engaged in rubber and plastic products. Gong Yuan quality is the quality of Gong Yuan brand pipes, which is a different definition, so it is different. As the largest core subsidiary of Gong Yuan Group, Gongyuan Yonggao Co., Ltd. mainly produces building water supply and drainage pipelines, municipal pipelines, industrial system pipelines and agricultural irrigation and drainage pipelines.