trench cover

 Trench Drain Cover Gratings, secured with hinged lid and connection, are steel lattice panels formed with simple lines. It's an ideal replacement drainage covers for conventional cast iron materials.

Appearance: simple lines. Silver exterior, modern trends.

Best drainage: leakage area of 83.3%, more than double the cast iron.
Hot-dip galvanizing: rust-proof and strong, maintenance and replacement.
Security design: box with hinged lid and connection, security, safe, easy to open.
Saving investment: large span. When overloaded, the lowest ratio of iron and saves replacement costs stolen, then crushed.
High strength: strength and toughness is much higher than cast iron, can be used for terminals, airports and other large span and heavy load environment.