China Fasteners--Counterbo 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 152.4-1988 Fasteners--Counterbores for hexagonbolts and nuts 紧固件六角头螺栓和六角螺母用沉孔 - 英文版
	GB/T 152.3-1988 Fasteners--Counterbores for hexagon socket head screws and slotted cheese head screws 紧固件圆柱头用沉孔 - 英文版

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