... symmetrically in four groups, five fixtures in one group, a set of injecting manipulator, a set of both-way carrying car for loading ... & unloading cabinet, a set of water-heating system, a set of safety exhausting system, a set of safety system, a set of safety ... total, devided into four groups, five fixtues in each one group.7. Tact time(or time circling) of production line: 28S ...