blast furnace tapping drill rod 1.price: the best reasonable price. 2. quality: ISO 9001:2000 3. serice: do our best seamless steel pipe CK45Product Nameseamless steel pipe CK45BrandXR(by our own factory)Material/Grade1)DIN CK45,JIS S45C,SAE1045,AISI1045;2)DIN CK20,JIS S20C,SAE1020,AISI1020,ASTM A106B,ASTM A53B,ST45,ST42.SizeOutdiameter:38mm(1.496"),40mm(1.575")Wallthickness:11mm-14mm(0.43"-0.55 ...