How to accurately reserve the length of both ends of the finned tube?

Cangzhou Datang Steel Pipe Co., Ltd located in Cangzhou City,the hometown of pipelines, is a collection of research and development, production, sales in one of the enterprises. The company was founded in 2007 with registered capital million RMB, and through the IS09001 international quality system certification, we has high frequency welding finned tube production line 18, extruded finned tube equipment 30, laser welding finned tube production line 2, wound finned tube production line 12. The annual capacity can reach 100,000 tons, the specification φ 18-273mm finned tube, according to the customer requirements of the standard production, service has exceeded 3000 enterprises. Email:info@ Whatsapp&Wechat: 8615690122018 Website: