... .Joints including socket and spigot,male and female,plain or other types6.High capacity: around 60 pcs dailyAdvantages of Suspension roller technology1.Adopting ... -4JointPlain,socket and spigot,male and femalePlain,socket and spigot,male and female Plain,socket and spigot,male and female Plain,socket and spigot,male and female Pictures ...