Welcome to Botou Guangtai Precision Casting Factory
Well manhole cover is with frame and the steel neck.We use the three screws fix the frame and the steel neck. And we use the three screws to fix the cover and frame through the three holes on the cover and three rings with holes on the frame. Typical Applications--- Drain manhole cover Rain manhole cover Water manhole cover Drainage manhole cover Sewer manhole cover Sanitary manhole cover
Key words : manhole cover gully grate round manhole cover square manhole cover Tree grates Water meter box Cast iron pig flooring Balance weight
