Hozirda poʻlatalarning qancha turi mavjud, 1500 DAN ortiq, 1000 DAN ortiq, 100 DAN ortiq, 150 ga yaqin, Poʻlatning turlari nechta, 3, 5, 4, 2, konstruksion poʻlatlardan nimalar yasaladi, bolt,gayka, bolta,tesha, asbobsozlik poʻlatlardan nimalar tayyorlanadi, zubillo,arra,egov, parma,gayka, shayba,bolt, truba,parma, poʻlatning qattiqligini oshiruvchi element qaysi, xrom, nikel, kobalt, mis, poʻlatning issiqbardoshligini oshiruvchi elementqaysi, kobalt, xrom, nikel, mis, poʻlatni yumshatish uchun necha gradusga qizdiriladin , 1000-200°C, 750-900°C, 500-600°C, 700-800, poʻlatlarga ishlov berishda qaysi pechdan foydalaniladi, mufel, domna, Asbobsozlik platolari qaysi harf bilan belgilanadi, U, x, st, s, konstruksion polatlar qaysi xarf bilan belgilanadi, St, s, a, u.
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