Spiral steel pipe is an important steel pipe in the project construction. It is forme...

Spiral steel pipe is an important steel pipe in the project construction. It is forme...

Spiral steel pipe is an important steel pipe in the project construction. It is forme...

Spiral steel pipe is an important steel pipe in the project construction. It is forme...

Standard API-5L, SY/T5037-2012 Grade : Q235B,Q345B,SS400, S235JR, X70 Thickness: 6...

Standard API-5L, SY/T5037-2012 Grade : Q235B,Q345B,SS400, S235JR, X70 Thickness: 6...

Standard: GB3091-2015, BS1387-1985, ASTM A500 GRADE A,B,C, ASTM A795, ISO65, ASTM A53...

Standard: GB3091-2015, BS1387-1985, ASTM A500 GRADE A,B,C, ASTM A795, ISO65, ASTM A53...

Standard API-5L, SY/T5037-2012 Grade : Q235B,Q345B,SS400, S235JR, X70 Thickness: 6...

Standard: GB3091-2015, BS1387-1985, ASTM A500 GRADE A,B,C, ASTM A795, ISO65, ASTM A53...

Standard: GB6728-2017, ASTM A500 GRADE A, B,C, EN10219 Grade: Q235B,Q355B,SS400,...

Standard: GB6728-2017, ASTM A500 GRADE A, B,C, EN10219 Grade: Q235B,Q355B,SS400,...