중국기어 샤프트, 기어, 변속기 기어 제조 / 공급 업체,제공 품질 Hardened-Alloy Heavy-Duty Excavator Ring Gear – Forged Tooth Root Patent, Corrosion-Resistant 2K300ga End Plate Bearing – Zf-Approved Solar Gear Assembly, Heavy-Duty Planetary Gearbox Flange Bearing 2K300 – Zinc-Alloy Liner Patent 등등.