Drilling Rig Parts, Workover Rig, Drilling Drawworks manufacturer / supplier in China, offering Alloy Steel Forged Gear II with Painted Surface, Bzx180b-12, for Drawworks Used Bzx180b Compound Transfer Case, Alloy Steel Forged Gear with Painted Surface, Jjx140-15, for Drawworks Used Jjx140 Drop Box, Alloy Steel Forged Gear with Painted Surface, Fd140-19, for Drawworks Used Fd140 Transfer Case and so on.