CB 3660-1997 Safety procedures for lifting operation in shipyard. 1范围 CB 3660规定了船在起重作业过程中对有关人员及设备安全的...
CB船舶标准
CB船舶标准
CB船舶标准
CB 3660-2012 船厂起重作业安全要求
CB 3660-2012 Safety requirements for lifting operation in shipyard. 1范围 CB 3660规定了船舶造修企业起重作业过程中对有关人员...