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ASTM International develops international standards for materials, products, systems and services used in construction, manufacturing and transportation. ASTM standard specifications and test methods define uniform requirements and procedures.

Servometer is a premier manufacturer of electroformed metal bellows, flexible shaft couplings, electroforms, and electrical contact springs.

Engineering standards, specifications, technical books, and more technical resources for engineers, technicians, scientists and other technical people.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

Environmental Expert is a global environmental industry marketplace and information resource. Online product catalogs, news, articles, events, publications, jobs & more.

IEEE Xplore. Delivering full text access to the world