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            | YAA type manhole covers
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            Rules g: phi 400, phi phi 450, 430, 600, 500, phi phi Material qualitative: SUS304 SUS316L, Application: dairy products, beer, food, beverage, pharmaceutical, and other industrial areas of pot and container View detailed
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            | YAC type manhole covers
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            Rules g: phi 400, phi phi 450, 430, 600, 500, phi phi Material qualitative: SUS304 SUS316L, Application: dairy products, beer, food, beverage, pharmaceutical, and other industrial areas of pot and container View detailed
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            | Rectangular manhole covers
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            Rules: 430, 512, X330 X435 Material qualitative: SUS304 SUS316L, Application: dairy products, beer, food, beverage, pharmaceutical, and other industrial areas of pot and container.
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            | Circle manhole covers
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            Rules g: phi 400, phi phi 450, 430, 600, 500, phi phi Material qualitative: SUS304 SUS316L, Application: dairy products, beer, food, beverage, pharmaceutical, and other industrial areas of pot and container View detailed
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