The tooth shape steel plate uses high strength carbon steel. It makes the steel plate that has the very high strength.This product has a large mesh with the best drainage character. The water leakage area is 83.3 percent, more than double that of cast iron.Lower than cast iron price;And save on the cost of replacement of cast iron caps due to theft or crushing.
Ordinary flat steel: The general material is Q235. The common type is 253, 255, 303, 305, 323, 325, 403, 404, 405, 503, 505, 605, 705 and other specifications
Twist steel: Also known as twist-twist square steel, there are 5x5 6x6 8x8 square steel twisted into steel reinforcement.
It is made of a serrated flat steel welded on one side. It has strong anti-slip ability, especially suitable for wet, greasy places and oil platform. However, the price is higher, please consider the cost when purchasing. The serrated steel grid plate is treated with hot-dip galvanization, with strong rust resistance, and is free from maintenance and replacement for 30 years.