Productiong DescriptionDetailed selling and lead descriptionFeatured:Material:A105 LF2 321 304 316 304L 316L 317L 347H 800H F11 F22 F51 F91 Standard:ASME ASNI DIN J ISSpecification:1/2"----24"Pressure Class:150# 300# 600# 900# 1500# 2500#Si