ineer tube 16.00-20 1.Wear and heat resistance 2.Certificate: CCC ... , 750-16, 825-16, 900-16, 900-20, 1000-16, 1000-20, 1100-22LT: 600-14, 600-15, 600- ... , 825-16, 825-20, 900-16, 900-20, 1000-20, 1100-20, 1200-20, 1200-24OTR: 1400-38, 1400-20, 1400-24, 1600- ... 24, 1600-25, 17.5-25, 20. ... * 9-15, 10-16.5, 12-16.5 ineer tube 16.00-20