China Specification and si GB Standards Search Result

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	GB/T 5442-1985 The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network 电话自动交换网带内单频脉冲线路信号技术指标测试方法 - 英文版
	GB/T 305-2019 Rolling bearings－Snap ring grooves and snap rings for radial bearings－Dimensions，geometrical product specifications (GPS) and tolerance values 滚动轴承向心轴承止动槽和止动环尺寸、产品几何技术规范（GPS）和公差值 - 英文版

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