Hom yas txhaj tshuaj molding tshuab siv nyob rau hauv yas qhov chaw tsim kev lag luam
Hom yas txhaj tshuaj molding tshuab siv nyob rau hauv yas qhov chaw manufacturing kev lag luam Piston Txhaj Tshuab Yas txhaj tshuaj molding nrog ib theem piston yog lub predominant system mus txog rau thaum 1955. Qhov system no muaj ib lub thoob uas muaj cov khoom yas, uas yog melted los ntawm cua sov bands nrog. resists nyob ib ncig ntawm ...