... certifation High quality Tube: 2-lemon tube, 3-lemon tube ( triangular tube), square tube, involute tube, star tube.Following are the tips how to order your PTO ... ×94mm series 8: 35 × 106.5mm 3.Types of tube: triangle profile tube, lemon profile tube. 4. Minimum overall length: 600-1800mm or 27 ... the quality and price will be your satisfaction. CE certifaction of Triangular Tube for Pto Shaft