txhuas raj
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Lub raj txhuas
Aluminium raj yog ib hom raj hlau tsis yog ferrous, uas yog hais txog cov hlau tubular khoom extruded los ntawm ntshiab txhuas lossis txhuas alloy kom hollow raws nws qhov ntev tag nrho.
Aluminium raj yog ib hom raj hlau tsis yog ferrous, uas yog hais txog cov hlau tubular khoom extruded los ntawm ntshiab txhuas lossis txhuas alloy kom hollow raws nws qhov ntev tag nrho.