... rotating window, brass internal and connection. Product Name:stainless steel & glass dial face Pressure Gauge 1) Dial size ... (zg, pt)4) Case material: black steel, plastic, chrome plated steel, stainless steel,iron5) Material of connection and internal: brass, ... face9)Bourdon Tube: brass, phosphor bronze, stainless steelInner Packing:Paper box, special printing acceptedOuter Packing:Cartons, packed ...