A universal gasoline engine fuel tank cover 5, characterized in that the number of the limiting convex platforms is above two and they are evenly distributed along the circumference of {HEAD ~ the inner wall} of {TAIL ~ the outer shell} 
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A universal gasoline engine fuel tank cover 5 , characterized in that the number of the limiting convex platforms is above two and they are evenly distributed along the circumference of { HEAD ~ the inner wall } of { TAIL ~ the outer shell }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL