螺杆空压机 screw compressor
More info here:
https://cncu.co.za/Miscellaneous/Rotary%20Screw%20Air%20Compressor/
激光专用空压机用户手册
User manual of special laser air compressor
产品使用说明手册
开机前请认真阅读该手册！！
Please read this manual before starting the machine
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