Profile: Shell-N-Tube Pvt Ltd is a producer of industrial and medical gases. We undertake site fabrication of cryogenic equipment. Aluminum star finned vaporizers are also available. Our cryogenic repair equipments include combination vacuum pumping system and mass spectrometer for helium leak check. Wide neck cryogenic dewar is a multi-layer insulated, vacuum jacketed dewar ideal for variety of cryogenic applications which need direct access to sored cryo fluid like liquid nitrogen.