1.膠管骨架層采用化學(xué)纖維編織(纏繞),管 體柔軟輕便. 2.膠管具有良好的耐老化性能,外觀有條紋或 光面兩種,顏色有紅色、黑色、藍(lán)色和綠色. 1.The inner material is made of knitted (spiral) fabric.The baby has the character of lightweight and flexibility as well as can besubjected to high pressure. 2. Possessing excellent aging resistance, available in red, black, blue and green with a choice of smooth surface or corrugated finish