1) Diameters: 40, 50, 60, 75, 80, 90, 100, 110, 120, 130, 150, 160, 180, 200, 220, 240 - 350mm

 2) Materials: 304, 304L, 310, 310S, 316, 316L, 317L, 321, 347

3).main technical standard: GB/T1220-92,GB/T14975-94,GB/T14976-94

4).quality control: test products\' mechanical and chemical properties in every procedure.

5).application range: petroleum, chemical Industry, medical equipment, paper making, etc