● Square/ Round/Rectangle Ductile Iron Manhole Cover at Frame.
● Heavy Duty Square at Rectangular Manhole cover at frame.
● Medium Duty Square at Rectangular manhole cover at frame.
● Light Duty Square at Rectangular manhole cover at frame.
● Pabilog na takip na may pabilog na frame.
● Pabilog na takip na may parisukat na frame.
● Channel grating, double layer na takip at frame.