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English: Category about valvegears that drive distribution valve of steam engines
日本語: 蒸気機関の弁を駆動する弁装置に関するカテゴリ


This category has the following 21 subcategories, out of 21 total.

Media in category "Valvegears"

The following 21 files are in this category, out of 21 total.