亦稱打點(diǎn)機(jī)，是根據(jù)新國標(biāo)研制并專業(yè)生產(chǎn)而成。并按照GB228-2008金屬材料拉伸試驗(yàn)的規(guī)定要求設(shè)計(jì)制造，適用于圓鋼、扁鋼、鋼管、型鋼及其它有色金屬材料打點(diǎn)標(biāo)距，供抗拉試樣之用。該連續(xù)式標(biāo)距儀構(gòu)造精密，使用方便，打點(diǎn)準(zhǔn)確，工作效率高，操作簡(jiǎn)便，是試驗(yàn)室必備的配套儀器。

If you shake it once, you can make 40 punctuation.

The punctuation distance is 10mm + 1mm, 5mm + 0.5mm, the full length is 400mm, the punctuation point is made of ball bearing round steel, and the hardness is no less than HRC55 degree.