... 6 bar )3) Absorptivity >93%4) Emissivity <7%5) Expansion of glass (~ 3.3 x 10-6 /)6) absorb ... (from Italy),flow meter,check valve,pressure meter,expansion vase ( from italy)Thanks for your attention,more ... 6 bar )3) Absorptivity >93%4) Emissivity <7%5) Expansion of glass (~ 3.3 x 10-6 /)6) absorb ... (from Italy),flow meter,check valve,pressure meter,expansion vase ( from italy)Thanks for your attention,more ...