ineer tube 16.00-20 1.Wear and heat resistance 2.Certificate: CCC ... , 600-14, 600-15, 600-16, 650-14, 650-16, 700-15, 700-16, 750-16, 825-16, 900-16, 900-20, 1000-16, 1000-20, 1100-22LT ... : 600-14, 600-15, 600-16, 650-14, 650-16, 700-15, 700-16, 750-15, 750-16, 825-16, 825-20, 900-16, 900-20, 1000-20 ... , 8.25-15, 7-8, 18 * 28 * 9-15, 10-16.5, 12-16.5 ineer tube 16.00-20