1.Polyurethane insulation sandwich panel 2.Cold storage room 2. PU panel room 3. CE 4.Temperature: -5 --40 1. Core material of ... 3. Material of panels surface: Color plate, Stainless Steel, etc.4.Surface of panels thickness: 0.326mm, 0.376mm, 0 ... Reservoirs, Gas-Liquid Separator, Oil Separator, H/L Pressure Controller, Condensing Pressure Controller, liquid Sight Glass, Solenoid Valve, Filter, H/L ...