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since 1935, miller products has supplied a wide variety of lifting attachments to industry internationally, including construction companies, utilities, crane operators, port and maritime, mining, oil and gas production, and a wide variety of manufacturing industries. sales are generally made through distribution and products include swivels, crane blocks, forged hooks, sheaves, and overhaul balls, as well as load insulators for crane operation near overhead power lines. lifting capacities range up to 1,000 tons. brand names include miller y-link, econo-link, g-link and hydro-link swivels, miller iso-link load insulators, and miller hi-lift blocks.