... -40mm 2) Grades: 304, 304L, 316, 316L 254SMO Super Dplex Stainless Steel Pipe 1) Specifications: OD:10-273mm and THK: 1- 40mm ... , smelt, medical machinery, papermaking, heat preservation and refrigeration, mechanical equipment, food, electricity, water conservancy, architecture, aerospace, navigation shipbuilding, environmental protection and ...