Xov xwm
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Cov yam ntxwv tseem ceeb ntawm cov hlau sib sib zog nqus stamping qhov yog dab tsi?
Cov hlau kos duab tob tob yog ib txoj kev tsim cov khoom ua haujlwm (nias ib feem) ntawm cov duab thiab qhov loj me uas xav tau los ntawm kev siv lub zog sab nraud rau lub phaj, ib daim kab xev, ib lub yeeb nkab, ib daim profile, thiab lwm yam los ntawm kev nias thiab lub pwm (pwm) kom ua rau cov yas deformation lossis sib cais. Stamping thiab forging yog t...Nyeem ntxiv
