??????????????? ??? Zinc Electroplating ??????????????????? ?????????? ???????? Cr +3 Trivalent chromium passivation ??????????????????????????? ?????????????????????? ???????????????????????????????? ASTM ??? JIS ?????????????????????????????????? X ray Fluorescence Spectroscopy (XRF ) ????????????????????????????????????????? Sal

       ???????????????????????????????? (Plate Heat Exchanger) ?????????????????????????????????????????????????????????????????????????????? ???? ?? ???????? ?????? ???? ??????? ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

????????????????????????????????????????        ????????? ??????????????????? ???????????????????????????????????????????????????? ???????????????????????????????????????????????????????????? ?????????????????????????????????????????????????????????????? ? ??????????? ????????????????????????????????????????????????????????????????????????????

       ????????? (Corner bar) ???? ???????????????? (Angle Board) ?????????????????????????????????????????????????????????????????????  ????????????????????????????????????????????????????????????????? ??????????????????????????????????????? ????????????????????????????????????????????? 3mm.-8 mm  ???????????????? 30mm.-150mm. ??????????????

          เครื่องบรรจุของเหลว เป็นเครื่องจักรที่ถูกออกแบบมาเพ�