Ductile Iron B125 D400 Manhole Cover With Grp Sealing ...
Ductile iron B125 D400 manhole cover with GRP sealing plate . 1) Production information Manhole cover are manufactured for construction and public use. Manhole cover shall be smooth and free sand holes, blow holes, distortion or any other defects 2) Material A) Ductile iron GGG50. B) Grey iron GG20 3) Designs
Get Price