... , maintenance-free, pollution-free, environmentally-safe hot-dip galvanized flat fence 1. assembly hot-dip galvanized flat fence, easy to install; 2. ... effect; 4. environmentally-friendly fence, non-pollution; 5. steel pipe, good impact resistence; 6. electrostatic spraying surface, good self ... resistance, suit for different areas;10.from the pipe, mountings to coating, all are brand products, ...