Nomoro ea patent ea mohlala ea t?ebeliso: ZL201820284980.6

Lehare le ka tlase le khaotsoe ka laser le bōpehile, bushing e entsoe ka mokhoa o nepahetseng, 'me lehare le cheselitsoe ka mokhoa o nepahetseng ka mor'a hore ho phethoe, li-circles tse ka hare le tse ka ntle li entsoe hantle ho etsa hore boholo bo be bo nepahetseng haholoanyane ea poleiti ea t?epe ea 16mm, 'me lehare le entsoe ka t?epe e chitja ea φ14mm, e leng se etsang hore mohaho o be o tiileng haholoanyane.