... Availability:1000piece/day ZHE JIANG SHENDING DOOS CO.,LTD 1.Internal door design(CE,ISO2008,SGS,EC,5S)Standard Features ( ... .(7). Hinges: galvanized steel hinges (external hinge,opening 180 degrees,interior hinge,opening 90-110 degrees)(8). Door sill: stainless steel ... 12). Invisible alarm doorbell is both practical and beautiful(13). Opening direction: left inside, right inside, left outside or right ...