"Oil fir" CNS Standards List |
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CNS 2353
2022 Edition Fire bricks for coal fired steam boilers 燃煤蒸汽鍋爐用耐火磚 |
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CNS 15901
2021 Edition Oil of fir needle, Siberian (Abies sibirica Ledeb.) 西伯利亞冷杉油 |
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CNS 2353
2020 Edition Fire Bricks for Coal Fired Steam Boilers 燃煤蒸汽鍋爐用耐火磚 |
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