Orthopedic intramedullary nails hi ruh sei tak (femur, tibia, leh humerus ang chi) enkawlna atana core internal fixation devices a ni. Titanium alloy ang chi biocompatible material hmanga siam an ni tlangpui a, hollow emaw solid rod emaw an ni a, a tam zawkah chuan locking holes an nei thin. Surgery an neih lai hian an ins