A major medical product manufacturer since the 1920’s, Comweld Healthcare (Comweld Medical) designs and manufactures high pro ... file healthcare products used extensively in Australian and overseas markets. Market leaders such as Oxy-Viva™ Resuscitators, Twin-O-Vac™ Suction units, Series-O™ Regulators and EZI-FLOW™ Flowmeters are some of the key medical products designed and manufactured by CIGWELD at the Preston, Victoria facility. read more