2'/3.5' semi trailer kingpin

Specification: Kingpin 3.5inch bolt in type complete with plate. 1.Can sell saperate,pin without plate,pin with 8pcs bolt,plate only etc. 2.Fast delivery time can be 15days. 3.we produce kingpin for more than 20years. 4.FULL heat treatment,hardness HRC28-32. 5.Email: [email protected] (Ms Trisha) skype: xi.trisha mobile:0086-15833719908(whats app/ we chat) QQ:2115248607