Screw press ndi mtundu wa zida zomwe zimagwiritsa ntchito extrusion yakuthupi kutaya madzi m'thupi.Zidazi zimakhala ndi makina oyendetsa galimoto, bokosi la chakudya, spiral auger, chophimba, chipangizo chotsekera mpweya, thanki yosonkhanitsa madzi, chimango, ndi zina.Zida kulowa zida...
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