ANSI B36.10 ASTM A106 GR.B Pipe Nipple Maker: ASTM A106 Grade B Pipe Nipple, 1/2 Inch x 100mm Length, SCH 160, ANSI B36.10, NPT*POE Ends.
API 5L Gr B Pipe Nipple Manufacturer: High Quality API 5L Grade B Pipe Nipple, 1/2 Inch X 100 mm, SCH 80, ANSI B36.10, NPT Threaded Ends.