三丰外径千分尺103系列,三丰数显外径千分尺293系列,三丰管材千分尺,叶片外径千分尺422-230,三丰内径千分尺145系列三丰外径千分尺103-101/103-137/103-138/103-139/103-140/103-129/103-130/156三丰管材千分尺115-302/395-251/395-271三丰数显外径千分尺293-821/293-240/293-340/293-341/293-251/293-252/293-254/293-255数显薄片外径千分尺编号规格422-2300-25mm分度值0.001mm测砧0.75*6mm422-23125-50mm422-23250-75mm422-23375-100mm422-2600-25mm测砧0.40*6mm422-26125-50mm422-2700-25mm钨钢测砧0.75*6mm422--2710-25mm钨钢测砧0.40*6mm