Gate-Valve Castings
Hongda's foundry catalogue identifies a carbon-steel sand-cast gate-valve item; this entry covers its casting supply, not an assumed complete tested valve.
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Hongda lists an alloy-steel sand-cast expanding-gate-valve item for petrochemical applications.
Supply the casting drawing, material grade, finished dimensions, machining allowance, inspection requirements and quantity. Request the proposed casting process and inspection documents for the actual part, including any additional machining and surface treatment needed for installation. Request the current catalogue or drawing for this item, and confirm the offered configuration and supporting documents with the company before specifying an order.