... towbar, value D 17 kn, value S 205 kg. • 50 mm Forged Tow Ball fits for Two-bolt Flange Towbar• Finish ... : 17 kn• Value S: 205 kg• Distance between centres: 90 mm Wenzhou Rongchang Hardware Co., Ltd. is the leader manufacturer of ... , trailer couplers, trailer connectors, bike racks, etc. Zinc Plated 50 mm Forged Tow Ball fits for Two-bolt Flange Towbar