Tender For supply of oxygen gas regulators (version 2) (q2) , acetylene pressure regulator as per is 6901 (q3) , welding goggles for eye protector as per is 5983 (q4) , welding apron (q3) , flash back arrestor (q3) , dark glass for welder's screen (q3) , welding helmet as per is 5983 (q3) , electrode holder as per is 2641 (q3)