... .steel pipe collar 2.Grade : Q195,Q235,A,B,X,42, X46. etc 3.Standard : API 5L , API 5CT , ASTM A53 ... , X42, X46, X52, X56, X60, X65 X70 PSL1 PSL2 Packing: In hexagonal unitized bundles Pipe treatment: Black paint, beveled or plain ... cap, as your indication. Application: Line pipe in oil and sewage transportation, in low pressure liquid and gassy transportation, for buildings and bridges.