We Shree Marutinandan Engineers having our office and factory at Surat (Gujarat). An ISO 9001: 2015 certified company. We manufacture LPG cylinder valves 25.6 mm, IS 8737 : 2017 and O2, CO2 valves as per IS 3224 : 2002 duly certified by BIS and PESO. SME has the capability and facilities to manufacture valve fittings for use with LPG cylinders to a specified standard of more than 5.0 liters water capacity. The plant was set-up with transfer of technology from Kosan Technova, Denmark via IOCL. Our product is thoroughly inspected in our lab with high precision instrument and go through all the process of pressure testing, leakage test, temperature testing, cycle test, Hydrostatic test, spring load test, IZOD ,Universal tensile testing along with all other chemical test.