KB系列伺服行星减速机PGH180T-L3 35-114.3-200-M12 LR83 CZ50 PGH180T-L3 35-114.3-200-M12 LR83 孔PGH180T-L3 35-114.3-200-M12 LR83 PGH180T-L3 42-114.3-200-M12 LR120 PGH180T-L3 42-114.3-200-M12-12B LR83