One end of the gas delivery pipe is connected with a gas source, while the other end is fixed in the tail of the mid-empty pipe.
所述气体输送管的一端用于 连接气源，另一端密封固定在中空管体的尾部；
Like appearance, price, as mentioned at the end into the exhaust pipe silencer and modified vertical exhaust pipe tail section.
外型一样，价格一样，分为消声排气管尾段和改装直排排气管尾段。
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