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石油、天然氣開采 Oil and natural gas extraciton
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海洋油用套管 Marine oil field casing
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化工生產 Chemical production
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電力工業 Electric Power Industry
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鍋爐制造 Boiler Manufacturing
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鍋爐制造 Constructiong,steel structure
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船舶制造 Ship bulding |
流體輸送 Fluid transport |
