Linzhi Petroleum located in Wenzhou city,specializing in first-class tank truck equipment since the 1990's. We offer design, development, production, sales, and technical service, to provide our customers the finest experience in product quality and customer service.We place first-class quality at the top of our list, our products include Manhole covers, Bottom-loading Adaptors, Inter nal shutoff valves, Vapore vents, overfill sensors, oil pumps and other petroleum tank truck equipment.