Sprayed-concrete piling has paper-tube core

Title (Dublin Core): Sprayed-concrete piling has paper-tube core
Subject (Dublin Core): en Technology; en Trenches and fortifications
Article Title and/or Image Caption (Dublin Core): Sprayed-concrete piling has paper-tube core
Contributor (Dublin Core): Frank B. Howe (writer)
Language (Dublin Core): eng
Date Issued (Dublin Core): 1921-05
Is Part Of (Dublin Core): Popular Mechanics, v. 35, n. 5, 1921
pages (Bibliographic Ontology): 706707
Rights (Dublin Core): public domain
Source (Dublin Core): google books
References (Dublin Core): concrete
Archived by (Dublin Core): Marco Bortolami; Marco Bortolami (editor)