Direct answer: A witness point gives the buyer or inspector the opportunity to observe a defined activity after receiving notice; production may normally continue if the invited party does not attend under the agreed rule. A hold point stops work until the required release is recorded. These controls are useful

Direct answer: An inspection and test plan (ITP) for custom furnace castings should list each control stage, the characteristic to be checked, the applicable drawing or procedure, the acceptance criteria, the required record and whether the step is a review, witness or hold point. An ITP turns a broad statement

Direct answer: Heat and batch traceability for custom heat-resistant castings should connect the delivered part to the approved drawing revision, material heat, production batch, inspection records and shipment. A useful identification system is readable, durable enough for the agreed service stage and explained in the quality documents. Traceability does not

A heat-resistant casting inspection report is useful only when its results can be traced to the delivered part and compared with a defined acceptance requirement. Buyers should check document identity first, then review dimensions, material results, NDT scope, deviations and final approval. A report containing only a list of “PASS”

A material certificate for a heat-resistant casting should identify the part or heat, state the applicable material requirement and report the agreed test results. For a custom furnace component, the complete quality document package may also include dimensional inspection, non-destructive testing, heat-treatment records, traceability and a certificate of conformity when