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OECD International Trade
International Trade By Commodity Statistics (SITC Rev. 3)
7: Machinery and transport equipment
74: Other industrial machinery and parts
741: Heating & cooling equipment & parts thereof, n.e.s.
7413: Industrial or laboratory furnaces & ovens, etc.
74136: Furnaces & ovens for heat-treatment of ores, metals
74136: Furnaces & ovens for heat-treatment of ores, metals
74136: Furnaces & ovens for heat-treatment of ores, metals
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