hat
Li adopte microseism peze par technics, siyifikativman presyon a ak fè sandbox dureté rive nan nivo pi wo pase HB90. Se konsa li ka ogmante sifas dous plis pase yon nivo. fè kalite pwodwi yo relatif stab.
eng
It adopts microseism squeeze molding technics, significantly increasing the pressure and making sandbox hardness reach standard above HB90. So it can increase surface smooth more than one level , and make the quality of the relative products stable.