KELINRUIER.KELINRUIER was established on August 4, 2000, with its registered office located in Dongying City, Shandong Province. KELINRUIER provides comprehensive solutions for new pipeline lining corrosion protection and old pipeline rehabilitation across various industries. We offer integrated pipeline integrity solutions encompassing corrosion protection, inspection, rehabilitation, maintenance, analysis, and assessment to reduce costs and leakage rates, ensuring pipelines maintain optimal performance for 50 years. KELINRUIER has independently developed multiple advanced pipeline cleaning, anti-corrosion, and repair technologies along with specialized supporting equipment, holding six invention patents and thirty-four utility model patents. Its primary products include: pipeline engineering services, pipeline inspection services, pipeline repair equipment, pipeline robots, petroleum technical services, and non-metallic material manufacturing.