ExtruderBarrelandScrewSpecification:Ø20mm ~Ø300mm DrawRatio: L / D = 15 ~ 55 စက်ဘီး ParameterQuenchingdTemperingHardness: HB280-320ScrewStraightness: 0.015mmNitridingHardness: HV850-1000NitridedChromiumCoati
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