WH圆弧圆柱蜗杆减速器WHT80、WHT100；WHX63、WHX80、WHX100、WHX125、WHX140、WHX160、WHX200、WHX225、WHX250、WHX280、WHX315、WHX335、WHX400、WHX500；WHS63、WHS80、WHS100、WHS125、WHS140、WHS160、WHS200、WHS225、WHS250、WHS280、WHS315、WHS335、WHS400、WHS500；WHC63、WHC80、WHC100、WHC125、WHC140、WHC160、WHC200、WHC225、WHC250、WHC280、WHC315、WHC335、WHC400、WHC500；