China Quartz crystal contr GB Standards Search Result

and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within 1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days .


	GB/T 12274.4-2021 Quartz crystal controlled oscillators of assessed quality—Part 4: Sectional specification—Capability approval - 英文版
	GB/T 12274.1-2012 Quartz crystal controlled oscillators of assessed quality - Part 1: Generic specification - 英文版

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