Shandong Pintong Mechanical &Technology Co.,Ltd., established in 2018, is a professional manufacturer engaged in the research, development, production, sale and service of air ducts,pumping and pipeline, seismic support hanger and pipe clamp, fittings. Pintong provides most efficient BIM design solution for M&E engineering projects in China, and Pintong products are manufactured and sold under our own brand name-GENAI Ducts, the only inner-insulated ducting system in China meeting the Chinese and International standards for inner insulated ducting systems.Pintong&#39s building construction and equipment maintenance. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In addition, we have obtained SGS certificates.Welcome OEM and ODM orders. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.