
Hollow Steel Door Marine Single/Double Sliding Door with Porthole for Boat Cabin. Comprehensive Certification: Approved by CCS, BV, LR, ABS, RS, DNV, KR, Class NK, GL, RINA. Customizable Fire Ratings: Available in A60, A30, A15, A0, B15, B0 fire door standards. Wide Color Options: Green, Champagne, Red, Silver, Bronze, White, Beige, Brown, Grey, Black. Customizable Pressure Resistance: Water pressure range from 0.5bar to 80bar for watertight doors. Multiple Material Choices: Constructed from Steel, Stainless Steel, Aluminum, or Copper. 24-Month Warranty: Includes 24 months of after-sales service coverage. Versatile Door Functions: Sound insulation, fire, gas tight, and water tight capabilities. Experienced Manufacturer: 12 years of export experience with 20+ years production expertise.