CAP. 50]
Importation and Exportation.
Deep hole drills and deep hole drilling machines, Automatic multiple spindle drilling machines, consisting of a cluster of twelve spindles or more driven from one power unit.
Automatic or semi-automatic cam-operated thread-cutting machines, single or multiple spindle.
All machines and equipment specially designed for manufacturing armaments including-
(a) shell lathes;
(b) cartridge case trimming and head finishing lathes;
(c) special spinning lathes for bombs;
(d) hydraulic presses for shell banding (tyre setters);
(e) special forging machines for bomb nose and tail;
(f) shell tappers;
(g) armour plate drilling machines (not including radial);
(h) special artillery centrifugal casting machines;
(i) special boring machines for aircraft bomb nose and tail;
(j) gun-jump screw lathes;
(k) rifle working machines.
Tyres, pneumatic, and inner tubes of a kind specially constructed to be bullet proof or to run when deflated.
Asbestos (strategic grades). Amosite, standard commercial grade (B1, B3 & 3/MD.2).
Mica (strategic grades). Block (good stained or better), film and muscovite splittings and phlogopite splittings which conform to the American Society of Testing Materials standards or to India-Calcutta standards.
All foil (paper thickness) rolling equipment.
High speed compressors for wind tunnels (8,000 revolutions per minute and over; Mach number 0.7 and over).
Turbo blowers having compression ratio of 2 or better.
Artificial graphite.
Quartz crystals and plates.
Valves and cocks with corrosive-resistance lining.
Electrically controlled automatic valves.
Searchlight control units.
Steel Mill Products.
Landing mats for aircraft.
Gilding metal, clad steel for bullet envelopes.
Gun forgings, rough and gun forgings, alloy rough.
Ferro columbium.
Ferro zirconium.
Chemicals.
Calcium permanganate.
Potassium permanganate.
Di-nitro-toluene solids and oils.
Stabilizers for explosives-
(a) ethyl and methyl centralites;
(b) diphenylurea (unsymmetrical diphenylurea);
(c) ...
(d) Methyl-N, N-diphenylurea;
(e) Ethyl-N, N-diphenylurea;
(f) Ethyl phenyl urethane;
(g) diphenyl urethane;
(h) diortho tolyl urethane;
Pentaerythritol and pentaerythritol-tetra-nitrates.
Hexamethylene-tetramine.
Hydrazine Hydrate.
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