SIS SMS 2379-1971 Countersunk square neck bolts Metric screw threads Coarse pitch《沉头方颈螺栓 公制螺纹 粗螺距》.pdf

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SIS SMS 1937-1969 Countersunk square neck bolts Inch screw threads Coarse pitch《沉头方颈螺栓 英制螺纹 粗螺距》.pdf

SIS SMS 1957-1969 Tolerances for round head and countersunk square neck bolts Inch screw threads Coarse pitch《圆头和沉头方颈螺栓 英制螺纹，粗螺距》.pdf

SIS SMS 2378-1972 Tolerances for round head and countersunk square neck bolts Metric screw thread Coarse pitch《圆头和沉头方颈螺栓，公制螺纹，粗螺距》.pdf

SIS SMS 2380-1971 Countersunk square neck bolts Metric screw threads Coarse pitch《沉头方颈螺栓 公制螺纹 粗螺距》.pdf

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