标题(Title) 一般不超过80个字符
Free 3D models, CAD files and 2D drawings - TraceParts
(54 个字符)
关键词(KeyWords)一般不超过100个字符
(0 个字符)
描述(Description)一般不超过200个字符
TraceParts is one of the world’s leading providers of 3D digital content for Engineering. The traceparts.com portal is available free-of-charge to millions of CAD users worldwide. It provides access to hundreds of supplier catalogs and more than 100 Million CAD models and product datasheets.
(292 个字符)