????????????? ???? ???? ?????? ???? SSHB50 ?????????? ???????????????????????? ??????????? ????????????? ???? ???? ?????? ???? SSHB50 ?????????? ???????????????????????????? 24-50 ??? ????????????????????????????????????????????????????????????? ????????????? ??? ?????????????????????? ?????????? ??????????????????????????
การรีดเกลียวโลหะมีกี่รูปแบบ
???????????????? ???????????? (Thread rolling) ?????????????????????????????????????????????????????????????????? ????????????????????????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????? 2 ??? ??????1. ?????????? ????????
กระดาษฉาก/กระดาษเข้ามุมฉาก คืออะไร ?
????????? (Corner bar) ???? ???????????????? (Angle Board) ????????????????????????????????????????????????????????????????????? ????????????????????????????????????????????????????????????????? ??????????????????????????????????????? ????????????????????????????????????????????? 3mm.-8 mm ???????????????? 30mm.-150mm. ??????????????