Excerpt from Book of Standards: Containing Tables and Useful Information Pertaining to Tubular Goods as Manufactured All tubular goods are manufactured by one of two general processes either by shaping sheets of metal, termed skelp, into tubes and welding the edges together; or by forming or drawing the tubes from solid billets or plates of metal. The products of the various processes are termed respectively welded or seamless. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.