专业生产船用圆形耐压舱口盖，具备CCS、BV船级社认证，钢制加厚板材，耐压水密油密性能优异，手轮快开结构，支持非标尺寸定制，船舶舾装配件一站式供货。China professional manufacturer of marine round pressure resistant hatch cover, CCS & BV approved steel watertight oil tight hatch with handwheel, recessed type, accept non-standard size customization for vessel deck.