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javastr=javastr+"·螺纹紧固件电镀层厚度附录E(GB5267-85)"
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javastr=javastr+"·螺纹紧固件电镀层厚度附录B(GB5267-85)"
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javastr=javastr+"·螺纹紧固件电镀层厚度附录A(GB5267-85)"
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javastr=javastr+"·螺纹紧固件电镀层厚度(GB5267-85) "
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javastr=javastr+"·螺纹紧固件电镀层引言、定义(GB5267-85)"
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