Yichen ndi anazindikira Chinese kuwotcherera waya Katswiri chinkhoswe mu R & D, kupanga malonda ndi ntchito kupereka. Tikupereka yaikulu mankhwala osiyanasiyana chophimba zitsulo kamwazi cored waya, gasi isagwe Arc kuwotcherera waya, adalowetsedwa Arc kuwotcherera waya, elekitirodi, nthaka waya, mtedza hex ndi zitsulo mpanda positi, etc. Mukhozanso waya awiri ndi ranged ku 0.6mm kuti 3.2mm. Makonda kuwotcherera njira nawonso anapereka.