KELINRUIER.KELINRUIER was established in 2000 and is headquartered in Dongying, Shandong Province, specializing in comprehensive pipeline lifecycle solutions. Through proprietary cleaning, anti-corrosion, and repair technologies alongside supporting equipment, the company delivers integrated services encompassing pipeline inspection, rehabilitation, and maintenance. It holds 6 invention patents and 34 utility model patents. Core business segments include engineering services, inspection services, repair equipment, and robotic systems. KELINRUIER is committed to reducing client costs and leakage rates through technological means, aiming to achieve 50 years of healthy pipeline operation.