The part of our factory producing 35 steel grade 10 M8 ~ M24 nut is: 镦 shape → normal fire → reaming → tapping → quenching → tempering. Since the national standard of 6H thread does not specify the amount of deformation after thread quenching and the reserved amount of galvanized layer. Therefore, when the diameter of the thread is close to the limit size, after quenching and galvanizing, the thread plug is often used to check the ride "stop" and "stop".
Intergrated Led Emergency Modules
The Intergrated Led Emergency Modules is match the compact LED fittings to improve the emergency function. Normally it is workable for small wattage from 3-60W LED panels, downlights, led tubes, tri-proof ceilings. Full power output or half power emergency output is optional. Customized emergency lighting time is available. Automatic lighting up when main power failures. Widely using for home, parking lot, office, building, warehouse, school, hospital, workshop etc.
Emergency Light Module,Emergency Led Flasher Module,Led Emergency Modules,Intergrated Led,led light with emergency battery
Foshan Nai An Lighting Electric Co.,ltd , https://www.emballast.com