花崗石平行規品名...............................規格尺寸.....................精度等級花崗石平行規.......................250X40X25mm........00級花崗石平行規.......................300X50X30mm........00級花崗石平行規.......................400X63X40mm........00級花崗石平行規.......................630X100X65mm......00級一、產地：1）中國山東二、售后承諾：1）計量不合格品退換，并賠償計量費用！