Hebei Canghai Nuclear Equipment Technology Co.Ltd. has more than 20 years of experience in the professional production of Spiral welded pipes. SSAW pipe takes form by rolling andwelding a steel strip in a way that thepivotal direction is oblique to the axis orpipe center, making the weld seam in aspiral line.Standard：ASTM A53, ASTM A252, API 5L, SY/T 5037,GB/T 9711.1, GB/T 9711.2,EN 10219, EN10217,etc.Steel Grade：API 5L: GR A, GR B, X42, X46, X52, X56, X60, X65, X70；BS 4360: Grade 37, Grade 50；EN: S275JR, S275J0H, S275J2H, S355JRH, S355J0H, S355J2H.