I.Chiyambi cha Zamalonda:
The mankhwala tichipeza m'munsi chitsanzo ndi specifications khumi osiyana kukula kwa mbale pakati, oyenera (0.1 ~ 0.58) mamilimita makulidwe chitsanzo, okwana 10 specifications, ndi mbale osiyana pakati, akhoza agwirizane makulidwe osiyana chitsanzo. Amagwiritsidwa ntchito kwambiri popanga mapepala, kulongedza ndi kuyang'anira khalidwe lazogulitsa ndi mafakitale ndi madipatimenti oyendera. Ndi chida chapadera choyesera mphamvu ya kuponderezana kwa mphete ya pepala ndi makatoni.
u No.1 0.100-0.140 mm
u No.2 0.141-0.170 mm
u No.3 0.171-0.200 mm
u No.4 0.201-0.230 mm
u No.5 0.231-0.280 mm
ndi No.6 0.281-0.320 mm
u No.7 0.321-0.370 mm
ndi No.8 0.371-0.420 mm
ndi No.9 0.421-0.500 mm
u No.10 0.501-0.580 mm