... general use, black steel case, plastic rotating window, brass internal and connection. Product Name:iron case with chrome plated Pressure Gauge 1 ... pt)4) Case material: black steel, plastic, chrome plated steel, stainless steel,iron5) Material of connection and internal: brass, chrome plated brass, stainless steel6) Scale: single ... Cartons, packed in PVC belt iron case with chrome plated Pressure Gauge