Min. Order Reference FOB Price
1 Piece US$120.00 / Piece
Product Description
Product description Item name Manhole cover Item NO. GY801C-560-580 Outer diameter 20" Certification ISO9001:2008 worker temperature -20°C-+70°C Working pressure 0.6Mpa Emergency open pressure 21Kpa-32Kpa Max. emergency vent rate 7000m/3h Material Aluminum Manhole ...