نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای spinning cathead:
n: a device that is attached to the shaft of the draw works and used as a power source for screwing together joints of pipe. It is usually located on the drillers side of the drawworks. Also called spinning cathead. See cathead.
n: see makeup carhead, spinning chain.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
