bottom latch catch roll off parts

{"cid":"91148747","title":"Noctilucent Metal Rolling Gate Lock L212 X W31.2mm Roller Shutter Door","imgUrl":"https:\/\/img.ismap.com\/nimg\/a5\/20\/457a54ec3e9f56fa53ec3c67f4b4-200x200-1.jpg","attrs":{"Price":"$1.05","Brand Name":"Bakue","Model Number":"DgZeBDS002-EL-PB","Minimum Order Quantity":"100 set","Delivery Time":"15 working days","Place of Origin":"China","Payment Terms":"T\/T, Western Union","Supply Ability":"2000set per day","Packaging Details":"PP bag, inner box, master carton","Finish":"Electronic Plated","Service":"OEM\/ODM","Usage":"Entrance Door","Style":"Traditional\/ Vie\/ Rustic","Material":"Brass","Size":"L212 X W31.2mm","Color":"Brass","Sutiable door":"Roller Shutter Door \/ Metal Roller Rolling Gate Lock"}}