Bolltau gre a chnau
1. Dur aloi: B7, B7M, B16, L7, L7M, L43 ac ati
2. Stainess dur: B8, B8M, B8T, B8C ac ati
3. Cnau: 2H, 2HM, 4, 7, 7M, 8, 8M, 8T, 8C ac ati
4. A325 ac A490 dur strwythur bollt gosod
5. Cyfres A453: 660A/B/C/D, 651, 662, 665, 668 ac ati
6. Duplex & super dwplecs: F51, F53, F55, F61, S32750, S32760, S31803, S32550 ac ati
7. aloi nicel: Aloi C22, C276, 400, K500, 600, 601, 625, 718, 825 ac ati
8. Aloi tymheredd uchel: 310/310S, A286, 800HT ac ati