Welding 1 http://upload.wikimedia.org/wikipedia/commons/a/a7/US_Navy_070517-N-9928E-009_Hull_Technician_Fireman_Zach_Carver_brazes_a_pipe_fitting_with_an_oxy-acetylene_torch_in_engineering_department%27s_welding_shop_aboard_Nimitz-class_aircraft_carrier_USS_John_C._Stennis_%28CVN_74%29.jpg…
