... of 6 mm, lateral 10 mm) welded together, the inner surface is very smooth and hard, with wear and corrosion resistance ... so on. (2), hot mix lid is cast aluminum, the surface is fine cars and polishing; it after starting from the ... . Wear and corrosion resistance, life > 15000 hours. (4), cold mixing machine mixing propeller made of stainless steel, polished, wear, corrosion resistance ...