ZHUHAI JIALI HARDWARE CO., LTD.

Jiali Waterproof Screws Dual Certification: Salt Spray & Pressure Cycling

Professional diving equipment demands both long-term corrosion resistance and instantaneous water-pressure sealing. Jiali PMS-WP series waterproof screws pass the ISO 9227 neutral salt spray test (NSS, 1000 h) AND the EN 60529 pressure cycling test (0–10 MPa × 5000 cycles), achieving dual