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造船及海上结构物 踏步级
Shipbuilding and marine structures; rungs for dog-step ladders
参考页数:3P.;A4
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造船.机器的信息处理和数字控制.ESSI格式
Shipbuilding; information processing; numerical control of machines; ESSI format; identical with ISO 6582, edition 1983
参考页数:11P.;A4
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造船和海上结构接.折线形梯子的梯级
Shipbuilding and marine structures; rungs for dog-step ladders; Identical with ISO 9519:1990
参考页数:4P.;A4
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