Another notable event occurred during the early 70’s when for safety reasons, Lloyds specified Tungum for use in oxygen lines on dive / hyperbaric systems. Almost overnight, dive equipment manufacturers converted from stainless steel to Tungum on all dive system circuits e.g. oxygen, air, heliox, heating water and hydraulics. Tungum is ideal for these applications as it is non-sparking & has the benefit of clean bore characteristics. Tungum Tube was also being preferentially used by major crane manufacturers such as Priestman, Clarke-Chapman, Stothert & Pitt for pedestal frame hydraulics and other hydraulically actuated auxiliaries due to its excellent corrosion resistance. Maintenance-free performance of these Tungum installations were being noticed by operators around the world who were by now being faced with costly replacements of stainless steel due to pitting & crevice corrosion taking place. This type of corrosion was occurring after as little as 2 years of an intended 25+ years of installation life. Now Tungum is approved and used by BP, Shell, Conoco Phillips, KBR & AMEC to name but a few.