Small craft - Hull construction and scantlings - Materials - Core materials for sandwich construction, embedded materials
小.造和材尺寸.材料.夹层结芯材料.嵌入材料
Small craft - Hull construction and scantlings - Materials - Core materials for sandwich construction, embedded materials
小.造和材尺寸.材料.夹层结芯材料.嵌入材料
Small craft -- Hull construction and scantlings -- Part 3: Materials: Steel, aluminium alloys, wood, other materials
小型舶.结和材尺寸.第3部:材料:钢,铝合金,木料及其它材料
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