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The protecting cover is molded by advanced technical flow machine while its cover naturally forms into intensive circular arc stiffener, evenly distributed. The engine cover presented as hyperbolic arch as a whole is scientifically designed and possesses mechanical stength. The cover is occluded closely form top to bottom. Which makes it possess good windproof and waterproof performances. Installation:Based on the Japan installation and connection technology of cover introduced form Shanghai Baoshan Steel Corporation, our cover is structurally reformed and innovated so that it is more convenient, practical and strong. Also it is set up the open-style maintenance cover in interval, including single-piece style and dual-piece style which are locked by special hinge and rapid loceking device. The locking device is simple, quickly installed, flexibly opened,and exquisite.One deviation prevention catch switch box wilol be equipped with on the position of deviation prevention wheel which on the two sides of the deviation prevention cover, which plays as adeviation catch switch box in work condition and inspection door when it is opened to be over-hauled and injected oil. The check door is equipped with skillfully handle-rotating built-in lock which will keep closed if not factitiously opened. The sight window,inspection door and the wave joint surface of the cover is embedded with special wave-forming flexible rubber battens which are absolutely sealed. The thickness of the cover material,the space between the unlock cover and the sight windows and the size of the cover are able to be produced accordingt to the required sizes of the cus-tomers and installed for them. In our company,there are professional experts who dedicating themselves to the research of the protecting cover. We are capable of designing and producing all kinds of non-standard protecting covers and have awarded two national patents