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