Amagwiritsidwa ntchito poyesa mphamvu yosweka ndi kutalikitsa kusweka kwa ulusi umodzi kapena ulusi monga thonje, ubweya, silika, hemp, ulusi wa mankhwala, chingwe, chingwe chosodza, ulusi wophimba ndi waya wachitsulo. Makinawa amagwiritsa ntchito mawonekedwe akuluakulu a chophimba chokhudza.
