Black Carbon Longscrew Nipple

1) Size of Barrel Nipple:1/8" ---4"

2)Length:30mm---3000mm

3)Material: ERW carbon steel and SMLS carbon steel

4)Type: Barrel Nipple, Welded Nipple ,Close Nipple,Longscrew Nipple

5)Finish: Hot-dipped galvanized ,Elec-galvanized and Black

6)Theads Standard: DIN2999,BS 1387, ISO7/1,NPT