China Hydraulic Parts Steel Spline Coupling a universal coupling is

Product Description Design No:YT-01Materials: 40CRHardness:40-44HRCarea therapy:nitridingthickness:.4-.6mmRemember to straight contant with manufacturing unit if want a lot more models or speical ask forWHO IS HangZhou YOYE HYDRAULIC CO.,LTD ? HangZhou Yoye Hydraulic...