hat
6. eksteryè sifas nan zòn nan ki pi piti pase mande tretman medikal ak moun ki pa marye a woulo pa pase 30%. An plis, la deyò a woulo tèmik isolés pou eksplozif anndan. Sifas tanperati a woulo deyò a, desann ak pèt chalè mwens, ki pa sèlman enèji ki efikas men tou améliore travay pou anviwònman ak kondisyon.
eng
6. The external surface area is smaller than dryer with single roller by over 30%. In addition, the outer roller is thermal insulated to inner roller. The surface temperature of outer roller is low with less heat losses, which is not only energy-efficient but also improves working environment and condition.