... Steel Casing Pipe/Oil tubing Process: ERW and Seamless Standard: API 5CT Thread type: LTC, STC, BTC, VAM. Process: ERW and ... Seamless Standard: API 5CT Certificate:Casing: LTC, STC, BTC, VAM.Tubing: NUE, EUE. Out Diameter: Casing: OD 4 1/2"- ... , Square cut. And pipe protection cap especially for casing and tubing. Heat treatment:Normalized, Quencher+Temper ( function(){ var aBigImageSrc = [ 'http ...