Class:Various diameters A15-F900
Process:1 automatic machine lines 2 moldings boards
Paint:Bituminous paint
Loading :as per en124
Materials:gray iron ductile iron

Inscription styles:1 yadite foundry 2 as per customers' request 3 standard inscriptions
Frp material:1good appearance 2antitheft for non recycle value 3 light weight 4 noise free
Advantages
A)environmental protection with non toxicity raw material, it will not influence to user
B)longevity corrosion resistance antirust insulation anti abrasion weather ability excellent ant pressure capability
C)competitive price the price is lower than stipulated standard
D)low weight it's convenient to transport install construct easily and reduce working intensity
E)nice appearance rich colors and can keep lasted
F)anti theft no recycle antitheft naturally

Manhole Cover and Frame
Class B125 Class C250 Class D400
Long ext. Frame Diam(mm) Clear opening Diam(mm) Height(mm) N.W.(kg) Long ext. Frame Diam(mm) Clear opening Diam(mm) Height(mm) N.W.(kg) Long ext. Frame Diam(mm) Clear opening Diam(mm) Height(mm) N.W.(kg)
300 200 30 7 400 300 35 15 500 400 75 32
400 300 30 10 500 400 40 23 600 500 75 48
500 400 35 17 550 450 45 30 700 600 75 70
600 500 35 29 600 500 45 34 800 700 80 95
700 600 40 42 700 600 50 53 900 800 90 113
800 700 45 55 800 700 60 66 1000 900 100 154