The steel letters are pressed on the sign board arranged on the sign board platform through a piston-rod of a hydraulic pressure cylinder.
钢字通过液压缸的活塞杆被压到设置在标志牌平台上的标志牌上。
The steel letters are pressed on the sign board arranged on the sign board platform through a piston-rod of a hydraulic pressure cylinder.
钢字通过液压缸的活塞杆被压到设置在标志牌平台上的标志牌上。
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