中文制服丝袜中出,亚洲欧美中文字幕在线一区,亚洲中文无码成人手机版,久久精品免费国产大片,免费观看A毛片一区二区不卡,九九热线在线精品视频

Engineering machinery long stored how should maintain?

Engineering machinery is how to correct storage engineering machinery operator should master the important knowledge. Especially many engineering machinery may be a long time will not be used, or is done, a project for the mechanical equipment must be stored for a long time. Engineering machinery equipment need how to correct the deposit becomes important issue for a long time, so how long stored mechanical engineering how to maintain the equipment in the storage period, after that they do not affect the use of Learn together!
How construction machinery stored properly
1, should be parked in the dry room. Had to stop outside, should fall flat on the ground and shop plank. After parking with cover cloth cover.
2, before long stored, must be carried out on the mechanical maintenance, repair the damaged parts, and ?