China Exhaust silencers fo 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 33928-2017 Reciprocating internal combustion engines—Measurement method for exhaust silencers—Sound power level of exhaust noise and insertion loss using sound pressure and power loss ratio 往复式内燃机排气消声器测量方法声压法排气噪声声功率级和插入损失及功率损失比 - 中英文版
	GB/T 4759-2009 Exhaust silencers for internal combustion engines - Measurement procedure 内燃机排气消声器测量方法 - 中英文版

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