Roger Scates의 책

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  Welding for Beginners in Fabrication: The Essentials of the Welding CraftRoger Scates

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  Off-Road Welding: Advanced Techniques on How to Become a True Off-Road WelderRoger Scates
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  Welding for Off-Road Beginners: This Book Includes: Welding for Beginners in Fabrication and Off-Road WeldingRoger Scates