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انواع بیل مکانیکی برای گودبرداری در خاکهای نرم و سخت، سنگ های نرم و مواد غیر سنگی استفاده میگردند. برای حفاری کانالهایی جهت جاگذاری لوله ها و کابل های ادارات برق، تلفن و آب و فاضلاب و حوضچههای بزرگ و نوع خاص آن برای معادن مورد استفاده قرار میگیرد. بیلهای مکانیکی میتوانند انواع خاک ها بجز صخره سنگ ها را حفر نمایند. صخره سنگها باید ابتدا توس...
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