We are manufacturing of cold storage from (+14C to -36C). Imported designing of cold storage units. Cold storage panels are G.I. pre-coated sheet both sides, in between added PUF (i.e. poly- urithine foam) which avoide the rusting & long life. Use of micro-controller or PLC (programmable logical controller) based electrical panel board & Hot gas defrost system or electrical defrost system OR compressor safety devices with auto & manual function. (Mfg. as required Air Cooled or water cooled). Used refrigerant gas R-22 or