We are Ningbo Santong Lock CO., Ltd. based in ningbo , China. We are member of Tradekey.com since May, 2009. Our business is related to Construction & Real Estate industry and we specifically deal in accessories for garage door, zinc alloy casting goods. Please find our product details below: Emergency lock Emergency lock use for garage door two cross keys steel line the other one is with plastic line, popular in Europe SPING FITTINGS Universal thread for use in either LH OR RH wound springs Maximum wire size-.295" diameter Set include(1)winding&(1)stationary Color coded winding fittings (2)3/8"-16x1" hardened cup point set screws installed with red heads For use on 1" tube SPING FITTINGS Universal thread for use in either LH OR RH wound springs Maximum wire size-.295" diameter Set include(1)winding&(1)stationary Color coded winding fittings (2)3/8"-16x1" hardened cup point set screws installed with red heads For use on 1" tube #3 CHAIN HOIST #3 chain hoist 3:1 reduced drive Wall or track mounted Includes: -(1)41B36 sprocket, 1" bore 36" of #41 roller chain 26&＃039; of hand chain (1) chain keeper 1/4" square key 1-1/4" bore available Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.