Api 5l Ангиллын В Спираль Гагнасан Ган Хоолойн Үйлдвэр Ба Ханган ...
Product 3PE Spiral Welded Steel Pipe Specification Material Carbon Steel OD 219-2020mmThickness: 7.-20.0mmLength: 6-12m Grade Q195 = A53 Grade A Q235 = A53 Grade B / A500 Grade AQ345 = A500 Grade B Grade C Standard GB/T9711-2011API 5L, ASTM A53, A36, ASTM A252 Application: Surface Bla...