surface treatment：1-Hot-dip galvanizing inside and outside: beautiful and rust-proof
2-Grinding 1200#
3-Spraying and Plastic Spraying (Electrostatic Powder Spraying) with advanced technology, energy saving, high efficiency, safety and reliability, and brilliant color
2-Laser Cutting Dimension Accuracy (+0.05 mm), Cutting Surface Smooth and Beautiful, Surface Roughness Dozens of Microns
Thread inside the pole:Use of national famous brand wires, durable waterproof connector.
Wind resistance grade ： No less than 10 Typhoon
Packing requirements: Steel is wrapped with not less than 2 mm thick geotextile or bubble plastic film, wrapped with impermeable woven fabric and packed in cartons with other accessories.