有效期至长期有效 | 最后更新2011-06-13 13:30 |
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SM10C SM12C SM20C结构钢
机械结构用钢:日本(JIS)S10C S15C S20C S25C S30C S40C S45C S50C S55C S58C 韩国(KS):SM10C SM12C SM15C SM20C SM25C SM30C SM35C SM45C SM50C SM53C 美国(ASTM):1005 1010 1015 1018 1020 1022 1025 1030 1035 1038 1040 1045 1049 1050 1055 1059 台湾(CNS):S10C S15C S20C S25C S30C S28C S35C S38C S40C S45C S53C S55C