YIKANG yakazara undercarriages inogadzirwa uye yakagadzirwa mune akawanda masisitimu kuti ishumire akasiyana siyana ekushandisa.Yedu track under carriage inoshandiswa zvakanyanya pamichina anotevera: Drilling Kirasi: anchor drilling rig, yemvura tsime rekuchera rig, core drilling r...
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