... ;straight,spiral,coilspecification;4x2.5,5x3,6x4,8x5,16x12,and so on ,also can according to your requestlength;according ... ,good high pressure-resistant property,good vibration-resistant property,highly elastic.operating temperature range is wide.the diameter size ... tube can be used in industry robot\pneumatic tools\air toolswe have passed the syetem of quality certification of ISO9002 pvc tube