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| Zinc-alloy no. 1980 | Zinc-alloy no. 1981 | Zinc-alloy no. 1983 |
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| Zinc-alloy no. 1984 | Zinc-alloy no. 1985 | Zinc-alloy no. 1991 |
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| Zinc-alloy no. 1992 | Zinc-alloy no. 1993 | Zinc-alloy no. 1994 |
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| Zinc-alloy no. 1997 | Zinc-alloy no. 1998 | Zinc-alloy no. 207A |
