09/30199935 DC
BS 2HR 6 鎳鉻鐵鉬鈷鎢耐熱合金坯料、棒材、鍛件及零件規范(鎳基、鉻 21 7、鐵 18 5、鉬 9、鈷 1 5、鎢 0 6)
BS 2HR 6. Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy billets, bars, forgings and parts (Nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)