used seedorf (rocker type) spot welder 3600-R used seedorf (rocker type) spot welder 3600-R used seedorf (rocker type) spot welder 3600-R used seedorf (rocker type) spot welder 3600-R used seedorf (rocker type) spot welder 3600-R used seedorf (rocker type) spot welder 3600-R used seedorf (rocker type) spot welder 3600-R