Kawaida: DIN, ANSI/ASME, JIS, EN, BS, AS/NZS, ISO, GB, NON-SANDARD
Nyenzo: Chuma cha Carbon, SS304/316
Daraja: 4.6/4.8/5.6/5.8/6.8/8.8/10.9/12.9, 36/55/105/B7/B16, B8/A2/A7
Maliza: Nyeusi, Zinki, H.D.G, Zinki Mitambo, Sherardizing, Dacromet, Xylan/Teflon