SJ 3275-1990.1主题内容 与适用范围1.1主题内容SJ 3275规定了单面纸质印制线路板的安全要求和试验方法。SJ 3275规定的技术内容涉及单面纸...

行业标准2023.07.25

SJ 20195-1992.Detail specification capacitors, fixed, ceramic dielectric,establi...

行业标准2023.07.25

SJ 20194-1992.Detail specification capacitors, fixed, ceramic dielectric,establi...

行业标准2023.07.25

SJ 20192-1992.Detail specification capacitors, fixed, ceramic dielectric,establi...

行业标准2023.07.25

SJ 20191-1992.Detail specification capacitors, fixed, ceramic dielectric ,establ...

行业标准2023.07.25

SJ 20968-2007.General specification for military sonar data- recordi ng equipmen...

行业标准2023.07.25

SJ 20970-2007.General specification for vehicular mounted mine detect ion device...

行业标准2023.07.25

SJ 20972-2007.General specification for imaging charge coupled assemb Lies.1范围SJ...

行业标准2023.07.25

SJ 20974-2007.Generic specification for hi gh temperature sinter ing e levator f...

行业标准2023.07.25

SJ 20973-2007.Capacitors, f ixed, double polarized, electrolytic(solid electroly...

行业标准2023.07.25