ETHFRF19 inch heavy-duty circular cast iron umbrella frame base, gray retro frosted texture, with drainage hole design, courtyard terrace sunshade umbrella fixing seat

Cast iron forging process: With a density of 7.3g/cm ³ and a single bearing capacity of over 150kg, the deformation resistance is increased by 40%. The surface has undergone high-temperature quenching treatment at 1300 ℃, combined with three layers of gray anti rust coating. After 72 hours of salt spray testing, it has excellent corrosion resistance and can adapt to harsh outdoor environments such as seaside and high humidity. Retro frosted texture aesthetics: The original antique frosted craftsmanship presents a delicate gravel texture and matte metallic luster, with a gray tone that blends industrial style and retro charm. Special coating treatment makes the surface hardness reach 6H level, wear-resistant and scratch resistant, and not easy to fade or peel off after long-term use. It can easily match with various outdoor decoration styles such as rattan furniture and modern minimalism. Scientific drainage and damage prevention design: The top of the umbrella seat is equipped with 4 inclined drainage holes with a diameter of 25mm, which, combined with an internal guide groove structure, can quickly drain 5L of accumulated water within 5 minutes. Add a moisture-proof pad at the bottom to effectively block the erosion of moisture on the ground, extend its service life, and protect the courtyard floor from rust pollution. Stable and anti slip dual protection: With a 19 inch (approximately 48cm) large base diameter and a thickened 8mm edge design, it provides a stable support surface; Built in silicone anti slip pad with a friction coefficient of 0.8, suitable for umbrella poles with a diameter of 25-50mm. Equipped with adjustable fastening screws, the umbrella pole can be precisely fixed by rotating 360 °, ensuring stability and stability in strong wind environments. Full scene adaptation artifact: suitable for various scenes such as courtyards, terraces, gardens, outdoor areas of cafes, etc., whether it is a parasol, Roman umbrella or hanging umbrella, it can be perfectly matched. The detachable design is easy to store and transport, with a net weight of only 18kg. Female users can also easily move it, combining practicality and convenience.