天津市通盈石油技术开发有限公司
Tonwin Petroleum Technology Ltd. has been serving the oil industry through manufacturing and repairing of a complete line of downhole oil tools and other oilfield equipment. During the past years our company has grown tremendously with market coverage extending domestically as well as internationally. Quality Assurance - Total Commitment to Customer Satisfaction. At Tonwin, Quality Assurance is a way of life. Quality standards are initiated from the ordering and receiving of materials through the manufacturing process to the final product release to the customer. Our commitment to quality ensures that our customers receive services and products of the highest quality. A copy of our Quality Control Manual is available upon written request.
Website：www.tonwintech.com