A na-ekewakarị igwe na-akpụzi injection n'ime igwe ndị a raara nye plastik kristal na amorphous. N'ime ha, igwe eji akpụ akpụ akpụ akpụ amorphous bụ igwe arụpụtara na nke kachasị maka ịhazi ihe amorphous (dịka PC, PMMA, PSU, ABS, PS, PVC, wdg). Njirimara nke...
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