Piano Hinge products specification as following:
stainless steel hinge, copper hinge, aluminum hinge, iron hinge
plating colored zinc, copper, blue zinc, spray paint white ,black, gold color, and etc.
3, Products specification
All with high quality.
4, Packing specification:20 piece /plastic bag,5 plastic bag/knit bag ,special packing is acceptable
5.quality: robust,smooth runnig,durable