STANDARD PROCTOR COMPACTION MOULD SKU: AST-322 Category: Asphalt Description Additional information Description Specifications: Machined steel, plated. 4″ Machined steel, plated. 6″ Additional information Quantity 1 Pc Related products Water in Bituminous Materials plus SOCLET Electric Laboratory Penetration Test Ductility of Bituminous Materials Test Mot Straight Edge