Sump Cover has many advantages, such as easy construction, light weight, big
bearing capacity, anti-lash and large displacement. Hot galvanizing for the surface
treatment makes it good looking and long durability. This trench cover is widely
used in city construction projects, Gardens, workshops and factory buildings, living
quarters and ports.

We can produce, upon the customers' need, covers of any shape and size in order to
satisfy different loads and spans. Besides, we also provide U-type trench covers.

 Ningbo Jiulong Machinery Manufacturing Co.,Ltd is the largest steel grating manufacturer in China. We have 7 running lines with yearly capacity of 50,000tons. Jiulong grating and related steel products have exported to more than 30 countries. Choose Jiulong grating is your right decision!