... 500,000cycles tested, YG75 Aluminum body floor spring/floor spring door closer/glass door floor springs,100KGS door weigh1. High quality casting ... 175°-360°. 8. Applicable for galss door 8-15mm,wooden door,iron door,aluminium door.9. 2 closing speed adjustable.10. ... From China.- Picture: Brass Adjust fittingPicture YG75 Aluminum body floor spring/floor spring door closer/glass door floor springs,100KGS ...