... ,1.4401,1.4571,1.4436,1.4435,1.4439,2.SpecificationsOuter Diameter: 6~250mm; Wall Thickness: 0.6~150mm; ... Maximum Length 2-12m, 3.Surface2B, 2D, BA,No.1 No.3, No.4, No.8, 8K, HL ... industry, chemical fiber, smelt, medical machinery, papermaking, heat preservation and refrigeration, mechanical equipment, food, electricity, water conservancy, architecture, aerospace, navigation ...