71. Rubber lined pumps can be used to pump
72. Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)
73. Shock resisting steels should possess high
74. When the steel is subjected to normalising, its __________ decreases.
75. Molybdenum steels containing 0.15 to 0.40% molybdenum
76. Which one is remelted and poured into moulds to get cast iron?
77. Reactor used in the production of polyvinyl chloride (PVC) is made of
78. Soap kettle used in the production of laundry soap is made of
79. In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of
80. Cast iron is a __________ material.
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