鉛筆硬度f的相關文章
鉛筆硬度f的相關公司資訊
鉛筆硬度f的相關商品
Elcometer 3080 Pencil Hardness Tester
瀏覽:348
日期:2024-06-06
The set of Elcometer 3080 Hardness Testing Pencils is a simple but effective technique to evaluate the hardness of many coatings. The pencil lead, prepared beforehand by using the special pencil sharpener and rubbing it on fine abrasive paper (400 grade),...看更多