Normally made from polyethylene outer skin and polyurethane foam inner core.Cargo ships shall carry no less than the number or lifebuoys complying with the requirements of SOLAS described in the table below. In compliance with requirements it is fitted with a buoyant lifeline. When being in used for operating the quick-release arrangement provided for the self-activated smoke signals and self-igniting lights, the lifebuoy have a mass sufficient to operate the quick-release arrangement or 4 kg 青岛四海船舶用品商行主要经营船舶救生用品、船舶消防设备、航行设备、信号设备、船用厨房用品、船用灯具、船用绳缆等船用物料配件，主要产品有：救生筏、救生衣、救生圈、救生灯具、救生发光信号、白昼信号、船用国旗、信号旗、IMO图贴及各种型号消防水枪、消防水带、消防接扣、灭火器、救生艇筏备品等产品。品种齐全，价格优惠！我们可以为各大修造船厂、航运企业、船务公司及靠港船舶提供一站式服务。您的满意就是我们的追求！欢迎广大船东、船务企业与我们联系，我们将本着用最好的产品，提供最好的服务为宗旨，竭诚为您服务！办公地点：青岛市市北区营口路32号工贸办公楼B楼208室