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UL 147:2015 pdf download – HAND-HELD TORCHES FOR FUEL GASES
UL 147:2015 pdf download – HAND-HELD TORCHES FOR FUEL GASES. 7.8 Copper or brass tubing and fittings containing more than 67-percent copper shall not be used for parts in contact with MPS-Gas. 7.9 An operating or gas-confining part of a...