12角法兰面螺栓
类型/项目标准Standard规格Size性能等级PropertyClass12角法兰面螺栓12-PointflangeboltsIFI-1151/2"~11/2"GR5,GR8ANSI/ASMEB18.2.7.1MM12~M208.8,10.9SNSI/ASMEB18.2.5MM12~M368.8,10.9SAEJ581/2"~11/2"8.8,10.9JB/T6686 M6~M528.8,1
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