atụmatụ:

1, nke ziri ezi na nke kwụ mkpọ: 0.5mm / m

2, nke ziri ezi na nke kwụ ọtọ mkpọ: 0 5mm / m

3, nke ziri ezi na nke 45 mkpọ: 0.5mm / m

4, Mark equidistant ebe & lineaccording na ọnụ ọgụgụ na theupper ihu

5, Steel agịga button

6, ndị a na-ígwè ahụ bụ, na

7, ma nsọtụ nke larịị. Larịị nwere ike ofu na mgbidi mgbe ịpị bọtịnụ

8, Vetikal mkpọ m kwụ mkpọ

9, Jiri maka vetikal na kwụ n'ihe