... ISO9001-2001,Molybdenum Alloy patent Certification KMD60 KK 60/125 Screw And Barrel For ExtruderFor good plasticizing effect,we ... 's demand.Product Parameter: Product KMD60 KK 60/125 Screw And Barrel For ExtruderHardness after hardening and tempering ... 50/105-110,51/105-120,55/110-125,58/125,60/125-129,65/120-132,68/147,70/150 ... ,74/156-162,80/143-156-162,86/177, ...