water grate: 400x500mm Frame size:470x570mm
The advantages of drainage
1.Perfect appearance:follow the trend.
2.Better drainage:water leakage area is 83.3%, which is more than twice of cast iron.
3.Design of anti-theft:no later recycle value,anti-theft,safety and easy to open.
4.High strength: load bearing capacity can reach 90tons.
5.Good weather-ability: corrosion resistance; acid-alkali resistant.
Zibo Best Energy-saving Materials Co., Ltd. Specializing in composite manhole cover, trench cover, drain grated and cable cover. More than 12 years experience and easy to get professional technical.
