... A106 GR.B Carbon Steel Pipe Standard:API 5L,ASTM A106/A53, Size:OD 1/4 ... Kingmetal resources co.,ltd can supply high quality SEAMLESS STEEL PIPES API 5L/ ASTM A106, GR.BStandardASTM A106/ASTM ... JIS G3462.We also can supply Other standard:API 5L, API SPEC5CT,ASTM A106,ASTM A 53,ASTM A210 ... caps on two end of every pipe outer; hexagonal shape bundles wrapped with strong steel strip or customers' requests. ...