납 밀봉 안전 스크루 / 변조 방지 및 증거 / 유틸리티 미터 및 밸브 / 주황 접착

스텐레스 스틸 스크류
July 19, 2025
Video Description:
Discover the M1-M20 Length Cold Heading Lead Seal Security Screws by Guanbiao Hardware. These tamper-proof screws are zinc plated and designed for utility meters and valves, ensuring visual tamper evidence with lead seal wire integration.