Compared with the currently used catch basin cover, the device features light weight, easy storage and transit, high bearing strength, and simple, fast and reliable installation and adjustment.

与现今使用的窨井盖相比，它还自重量轻运储便利承压强度高并安装调整简单快捷可靠。

youdao

Compared with the currently used catch basin cover, the device features light weight, easy storage and transit, high bearing strength, and simple, fast and reliable installation and adjustment.

与现今使用的窨井盖相比，它还自重量轻运储便利承压强度高并安装调整简单快捷可靠。

youdao