... 1.The material is ss304, 316, 316L, suitable for the glass curtain wall.2.Arms:6arms,4arms,3arms,2arms,1arms (includes ... are pleased to introduce ourselves as manufacturer. Our factory is specialized in producing glass curtain wall finttings, spiders, fin spiders, routels, tension ... modern control and measurement equipments have made us the first level in this field for many years, .and our company ...