لوله ASTM A795 ERW چین
لوله ASTM A795 ERW چین - پیپ سفارشی ASTM A795 ERW; A795/A795M Standard Specification for Black and. 1.1 This specification covers black and hot-dipped galvanized welded and seamless steel pipe in NPS 1/2 to NPS 10, inclusive [DN 15 to DN 250, inclusive] (), with wall thicknesses as given in Table 1 and Table 2.Pipe having other ...