1.beautiful appearance and high grade raw material.
2.Better drainage:water leakage area is 83.3%
3.Design of anti-theft material: no recycle value;anti-theft,safety and easy to open.
4.Good weather-ability: corrosion resistance; acid-alkali resistant.
Trench cover dimension: 300x500, 350v500, 450v750,400v600, 400x500, 380x680...... We also produce manhoel cover, gully grating and telecom cover. If you want to know more details ,pls feel free to contact me directly and welcome any inquiry.