2D adjustable OEM or ODM or samples order are welcome 2D adjustable Conceal HingeMaterial: zamak

Finishes: satin nickle / satin chrome / polish chrome / antique brass / antique copper / gold surface / etc

Function: used at metal door, totally invisible from either side when the door is closed.

invisible door hinge/2d Adjustable Door Hinge/fire door conceal hinge/Zinc Alloy Conceal Hinge/door Hinge