frp manhole cover/ GRP Fiberglass SMC BMC Round Trench/Ditch/Gutter Cover FRP tent pole: 1.anti-corrosion; 2.light weight and high strength; 3.insulation,uv-resistance; 4.customization,economy. Advantage of fiberglass tent pole: High Strength And Insulating Values High Corrosion ...
Square Manhole Cover Color: Can be customized Material: BMC Loading Capacity: 5tons, 10tons, 12.5tons Application:Road Facilities, Municipal Engineering and so on Advantage http://www.zibobest.com ...