SMC manhole covers

SMC manhole covers Clear open: 450mm x 450mm (17.8“X17.8“) Sealed structure 、 Lockable Anti Static, Corrosion Resistantand aging resistant Product Standard: BS EN124:2015 Working Temperature: -50℃～ 150℃ Load Ratings: D400(40ton)、C250(25ton)、B125()、A15(5ton) Welcome to inquiry and order！ E-mail:sales@ Http:// WhatsApp/WeChat: 86 133 6278 5806 #China SMC Manhole Cover Factory #China Composite Manhole Cover Supplier # Waterproof manhole covers #BETTER COVER #Manhole Covers