37 Application of coatings for others, namely, applying protective coating, namely, zinc and polymer coating; Application of coatings for others, namely, applying protective coating in the nature of zinc, polymers, wear resistance, anti-rust and anti-corrosion; Application of protective coatings; Applying protective coatings to metal pipes and tubing; Covering, coating, and maintenance of pipelines for oil; Repairing corrosive or leaking pipes through pipelining, namely, coating the inside of the pipe with a durable safe epoxy