Ductile iron surface box Material: surface box, Gray/Ductile Iron Standard: ISO 9001:2008 and EN124 Service: OEM Service,EN1 Ductile iron surface box    1) Material: grey iron, ductile iron. 2) Type:Round type and Square type. 3) Sand casting with hand molding4) OEM service is avalible. 5) As per customer's drawings or samples. 6) Sureface treatment:black bitumen coated, without coating or as per customer's requirement.   Details show:

Ductile iron surface box