Place of origin:  
China
                 Price Condition:  
FOB 
                 
            load, reasonable design without injuring hands, beautiful appearance. 
Linking parts made of aluminum alloy, light weight, not deformation, and with wear-resistant shaft sleeve, reduce clearance, then reduce frication to ensure the shutters open flexibly. The spring is made of 304 stainless steel, long time use, no deformation, no rust. 
Standard parts especially the washer as fastener parts are 
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