1. Fasaha bukatun: High thickness 185mm da ci gaba da kayan aiki siffar. waje kayan aiki aiki waje diamita 18.72mm, amfani da zagaye Pin plug iko, auna biyu diagonal hakora auna matsakaici da ƙasa size. Size kuskure <10μm.
2. fasaha matsala: hakora bangon size ne muhimmanci, saboda kayan aiki tsakanin kayan aiki ne da hakora bangon tuntuɓar. Saboda haka, a cikin shirin yin sassa huɗu na aiki, rage karkatarwar aiki da sanya layin gabatarwa a kan hakora, sake amfani da gila don kwalliya.