Common metals and their alloys; Door springs of metal, non-electric; Foot-operated door openers of metal; Gate handles of metal; Hinge pin door closers of metal; Manually operated metal valves; Metal door hardware, namely, keys and key cylinders; Metal door hardware, namely, non-powered door actuators; Metal doorknobs; Metal safety doors; Metal security lock cylinders; Self-closing hinges of metal; Spring-loaded door closers of metal; Spring hinges of metal

'actuat':50 'alloy':5 'close':62 'closer':27,70 'common':1 'cylind':41,59 'door':6,16,26,35,43,49,55,69 'doorknob':52 'electr':12 'foot':14 'foot-oper':13 'gate':20 'handl':21 'hardwar':36,44 'hing':24,63,74 'key':38,40 'load':68 'lock':58 'manual':30 'metal':2,9,19,23,29,32,34,42,51,53,56,65,72,76 'name':37,45 'non':11,47 'non-electr':10 'non-pow':46 'open':17 'oper':15,31 'pin':25 'power':48 'safeti':54 'secur':57 'self':61 'self-clos':60 'spring':7,67,73 'spring-load':66 'valv':33

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