Dumar dumar ah oo ah NPT been abuur

Sharraxaadda Gaaban:

Heerarka: ASTM A182, ASTM SA182

Cabbiraadyo: asme 16.11

Cabbir: 1/4 "nb ilaa 4" nb

Foomka: Shingings, Hex Madaxa Madaxa

Nooca: Qulqulka-Tooska ah ee NPT, BSP, BSP-ga bspt