检测标准:Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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GB/T1228-2006 高强大六角头螺栓Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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GB/T1229-2006 高强大六角螺母Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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GB/T1230-2006 高强度垫圈Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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GB/T1231-2006 高强度大六角头螺栓、大六角螺母垫圈技术条件Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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检测项目:Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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1、螺栓楔负荷试验;Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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2、螺栓连接副扭矩系数;Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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3、螺母保证荷载试验;Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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4、螺母、垫圈表面硬度。Ñ¿_J=ï³BDhbbs.3c3t.com:Ø¡cácØ
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