부품 번호 MDF747XP

부품 정보
Dual head; aluminum chest piece; brass acoustic valve stem; chrome plated brass headset tubes and headset spring; non-sticky, non-cracking high density latex-free pvc y-shaped tubing; ultra-thin fiber diaphram selaed with a retaining ring; deep cone-shaped bell for detecting acoustic sensitivity at 20-100 hz frequency sound transmission; diaphram and bell are crowned with a non-chill pvc retaining ring