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- Fri May 15, 2015 10:35 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Rider Ericsson Patterns or parts 8"?
- Replies: 5
- Views: 5338
Re: Rider Ericsson Patterns or parts 8"?
Depends on the motor size, it can range from party balloons, rubber gloves, to fabric reinforced rubber, or corrugated metal.