Steel case copper core plastic handle copper key 70mm partial interior door lock core, anti-theft performance is stable, material is hard, anti-fracture, gram is more important than copper Zinc alloy pig iron and other materials, high quality and low price, a variety of choices, complete specifications, configuration can be customized according to customer needs, 45mm 54mm 60 mm 70 mm to 80 mm 90 mm 100 mm 110mm120mm, all specifications can be customized, the minimum order quantity is not less than 6000. Please feel free to contact: 13646593367, weixin:xuan3367