ExtruderBarrelandScrewSpecification:Ø20mm ~ Ø300mm DrawRatio: L/D = 15 ~ 55 რვნჟკთწ ოპჲმთპყრ კჲნფთნდ თჱდლვზეა. HB280-320ScrewStraightness: 0.015mmNitriding Harddness: HV850-1000NitridedChromiumCoati.
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