bids are invited for refilling of helium gas mse exemption for turnover yes startup exemption for turnover yes 1 18 running contract for supply of helium gas purified to 99.995 percent minimum purity as per the table 1 of technical specifications , running contract for replacement of valve spindle as per technical specifications on as and when required basis , running contract for replacement of cylinder cap or guard as per technical specifications on as and when required basis , running contract for replacement of gland nut as per technical specifications on as and when required basis , running contract for replacement of neck ring as per technical specifications on as and when required basis , running contract for replacement of valve as per technical specifications on as and when required basis , running contract for hydrostatic stretch test as per technical specifications on as and when required basis , running contract for removal of oil traces as per technical specifications on as and when required basis , running contract for chemical wash as per technical specifications on as and when required basis , running contract for painting of cylinders as per technical specifications on as and when required basis , running contract for painting of npcil tvs on cylinders as per technical specifications on as and when required basis total quantity : 45211