On the Compositions translation page there are some items without link to Wikidata:
30 aluminium-nickel-bronze https://www.wikidata.org/wiki/Q111294303
65 bronze-nickel https://www.wikidata.org/wiki/Q5734222
46 copper-aluminium-nickel https://www.wikidata.org/wiki/Q110990133
62 leaded copper https://www.wikidata.org/wiki/Q85776073
28 manganese brass https://www.wikidata.org/wiki/Q111475583
16 nickel brass https://www.wikidata.org/wiki/Q6047522
12 nickel silver https://www.wikidata.org/wiki/Q203874
53 nickel-steel https://www.wikidata.org/wiki/Q110981410
66 paper https://www.wikidata.org/wiki/Q11472
67 polymer https://www.wikidata.org/wiki/Q81163
69 silk https://www.wikidata.org/wiki/Q37681
