50Mn track roller

{"cid":"217007","pid":"31702671","pimg_url":"\/\/img1.b2bforus.com\/16\/c0\/1a166779c8b7\/product\/120070417_s-w400xh400.jpg","name":"50Mn D3C D31 D40 D45 D50 D65 D80 D85 D155 Double Flange Track Rollers Bottom Roller Bottom Roller","attrs":{"Price":"Negotiable","MOQ":"1 piece","Delivery Time":"Negotiable","Brand":"KTS"}}