Screw and Barrel for Blowing Film машине
ExtruderBarrelandScrewSpecification: Ø20mm ~ Ø300mm DrawRatio: L/D=15~55 ТехникалыкParameterQuenchingandTemperingHardness: HB280-320ScrewStraightness: 0.015mmNitridingHardness:HV850-1000NitridedChromiumCoati.
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