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Quenching and tempering HB220-270, nitriding HRC>65 foreign useful titanium c...
The inner and outer hardness of the barrel is higher than that of the screw, and...
Since melting mainly occurs at the solid bed interface with the upper melt film,...
One is a screw and the other is a two screws. All are driven by a single motor. ...
The threaded rod is a cylinder with a spiral groove on the outer surface or a co...
1. Frequent stoppages; 2. Conversion of high temperature materials and low tempe...
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