... , pf), bspt (zg, pt)4) Case material: black steel, plastic, chrome plated steel, stainless steel,iron5) Material of connection and internal: brass, chrome plated ... : brass, phosphor bronze, stainless steelInner Packing:Paper box, special printing acceptedOuter Packing:Cartons, packed in PVC belt stainless steel & glass dial face Pressure Gauge