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Long Steam Buried Welded Ball Valve. Fully Welded Structure: Zero leakage design with integral welding, ensuring safety in harsh conditions. Buried Installation Ready: Extended stem design allows ground-level operation without manual excavation. Earthquake Resistant: Valve body material matches pipeline to prevent stress and deformation. Anti-Static Safety: Conductive design prevents static buildup, reducing fire and corrosion risks. High Precision Ball: Computer-detected processing ensures high-precision sphere for tight sealing. Low Maintenance Cost: No lubrication or adjustment needed, ensuring long-term reliable operation. Multi-Industry Application: Suitable for gas, heating, steel mills, and industrial heat treatment pipelines.