The coated plug gauge, precision of which is in accord with demands of origind design, can be directly put into use without any pretreatment.
几何形状完全符合精度要求，镀后的塞规可以直接投入使用。
The coated plug gauge, precision of which is in accord with demands of origind design, can be directly put into use without any pretreatment.
几何形状完全符合精度要求，镀后的塞规可以直接投入使用。
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