The spare parts is used for excavator travel motor,the swing shaft material is metal ,and certification is ISO,It is uesd for many excavator such as SANY/LIUGONG/ZOOMLION/XCMG etc.We can provide other products ,We delivery the product 10-15days after payment finished.
If you need more information please contact us with phone or please invist our company website.
Skype ID:  sales.landwolf     
Website: www.landwolf.en.alibaba.com
Office:(+86)0731-84321966