... ,high quality is our aim.We specilized in manufacture the hitch ball hitch BallFeatures: 1) Materials: AISI1020, AISI1045, AISI5140 and AISI304 2 ... die-casting <280T-1350T>, three accurate casting, three auto trailers hitch ball production flowing. High stating point, high technique and high ... sprite. Well keep improvine our company and developing our business. Hitch Ball