1.spac:8 ,10,14,16,18,20 2.thickness:2.0mm/2.5mm/3.0mm 3.material:S.S304/301/202/201 Window hinge 1.spac:8 ,10,14,16,18,20 .222.thickness:2.0mm/2.5mm/3.0mm 3.material:S.S304/301/202/20120mm round groove window hingeused for side hung window.can be in normal use after 50000 times switching test.material: S.S304/301/202/201can be in normal use after 50000 times switching test.Specification of the ...