SBG series pipeproduction line (double wall line,sewer pipe line) is widely used in drainage system of industry and agriculture, discharging gas, coal mine airing, communication, agricultural irrigating and other special-use pipe materials. It mainly adopts winding-shaping method. Its investment of the equipment is low and its products have good result.Main technical standards:Model specifications SBG1 SBG2 SBG3 Produced pipe specification(mm) φ300--φ600 φ700--φ1000 φ1200--φ1500 power about 170 about 230 about 280 production capacity(m/h) 0.2 0.17 0.12