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Quality inspection results of pump and valve


The quality inspection results of castings are usually divided into three categories: qualified products, repaired products, and scrap products.
1) Qualified products refer to castings whose appearance and internal quality meet relevant standards or delivery acceptance technical conditions;
2) Repaired products refer to castings whose appearance and internal quality do not fully meet the standards and acceptance conditions, but are allowed to be repaired. After repair, they can meet the requirements of the standards and technical conditions for delivery acceptance of castings;
3) Scrap refers to castings that do not meet the standards and technical requirements for casting delivery acceptance even after repair or repair, as both the appearance and internal quality are not qualified. Waste is divided into two types: internal waste and external waste. Internal waste refers to the waste castings found in the foundry or workshop; External waste refers to the waste found after delivery of castings, which causes much greater economic losses than internal waste.

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