ERW welding line type and ISO certification 316 stainless steel tube

standard: ASTM, JIS, EN, 

application: pressure tube for heat exchanger, boiler and pressure service

surface treatment available: Mill finish (AP/As welded), bright annealing, Bead removing. Outside mechanical polishing (MP

< 0.8um. or 180#/400#/600/180#Hairline). Electropolishing( EP.Ra < 0.4um).

Max. Length: 25meters.

Shapes available: round, Square, Rectangle, Oval, and other special profiles.