SCH said mean

in the steel pipes, pipe fittings, flanges SCH is short for the Schedule, is the American standard pipe fittings, steel tube wall thickness of the symbol. SCH, SCH, SCH, SCH, SCH, etc. On behalf of different wall thickness. Specific thickness values can be reference ANSI B. , ANSI B. American standard steel tube standard. Recommended products: bearing pipe.

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