Patent Technology Romote Steel Bar Tej Tshuab
Oct 18, 2018| Patent Technology Romote Steel Bar Tej Tshuab
Cov chaw taws teeb tswj tau yooj yim thiab txuag zog.
Cov khoom siv tshwj xeeb casting lub thawv yog ib txwm siv rau kev tiv thaiv lub neej ntev.
Kev siv elliptical sib txuas cov pas nrig yog qhov yooj yim dua rau cu thiab txiav qhov chaw yog ntau du.
Cov chaw taws teeb tswj kev txiav, hloov tshiab, tshiab thev naus laus zis.
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