Stainless Steel U-tube 1) Material: 304,316 and so on. 2) ... /JIS 3) OD : 1/2''-48'' SEAMLESS STAINLESS STEEL U-TUBES Features: 1) Specifications: OD: 8- 630mm and THK: 1- 40mm 2) Grades ... , 304L, 316, 316L, 312, 317L, 310S Features:1) Specifications: OD: 8- 630mm and THK: 1 - 40mm2) Grades: 304, 304L, 316, 316L ...