공학 분석: ASTM E90 표준에 따른 나일론 롤러와 강철 롤러의 소음 저감 효과 비교(20dB 저감 달성)
A forensic audit of acoustic flanking transmission in garage systems. Learn how Shore D 65 nylon rollers achieve a 75% vibration reduction over steel, preventing track scouring and mechanical chatter.