1-100mm 32 38 47 83 87 103 112Pcs/Set High Precision Block Gauge Grade 0 Grade 1 Survey gauge accuracy 0.001mm HSS gauge block

1-100mm 32 38 47 83 87 103 112Pcs/Set High Precision Block Gauge Grade 0 Grade 1 Survey gauge accuracy 0.001mm HSS gauge block

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