concealed hinge,door hinge,cross hinge material:stainless steel,zinc alloy finish:satin,polished,chrome,satin-nickel or pvd size:28*118mm weight:665g pcs each door leaf:usualy 3 pcs Bearing weight:55kg Suitable for door leaf thickness:40mm Our company supply door hinge,door bolt,door stop and other door accessories,which made of stainless steel,zinc alloy,etc.welcome to contact us,in case we are offline,please leave us message.