6*3*4M -10C~-20℃ freezer room

6*3*4(height)meters freezer room -10C~-20C,use 80*180MM hinged swing door, roof panel/wall panel/floor panel use 100MM thick 0.426Glalv steelsheet. Use Copeland Scroll 7HP condensing unit or Bitzer 6HP Semi-hermetic reciprocating compressor condensing unit, DD9 unit coolers, Danfoss Tes06# Expansion valve.