GB/T 35354-2017船舶和海上技术大型游艇甲板起重机和登船梯强度要求国家标准
英文:Ships and marine technology—Large yachts—Deck crane and access gangways strength requirements GB/T 35354-2017介绍: 国家标准...
英文:Ships and marine technology—Large yachts—Deck crane and access gangways strength requirements GB/T 35354-2017介绍: 国家标准...