... durable surface treatment 3.Function:pipe connector Ornamental Cast Iron Fence BushingsProducts1.weldable cast steel flowers and leaves2.cast ... steel balustrade and newel posts8.finished products,like gates,fence,balconiesSurface treatmentspray paint , sandblasting, anti-rust liquid, ... iron components is above 5 TONS2)wrought iron gate, door, fence, stairs,balcony is above 40 PCSFunctionwidely used on ...