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洛阳市富帅通用紧固件厂专业生产高强度螺栓、螺母及石化高压螺丝。HG20613,HG20634,SH3404系列及GB901GB897GB898GB900等,材质有:35CrMoA,30CrMoA,42CrMoA,40Cr,25Cr2MoVA,25Cr2M1V,1Cr5Mo,Q345B,45# ,35# ,20MnTiB,1Cr18Ni9,304 , 320 ,316, 316L ,SCM435 ,2Cr13 ,0Cr17Ni12Mo2(316)0Cr25Ni20,38CrMoAI ,35CrMoVA,35CrMoVA. 强度等级包括:12.9级,10.9级,9.8级, (未完,全文请
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