Is there a local bus or transport from beijing bawangfen express bus station to main train station

From Bawangfen West Station, you can take loccal public bus 668 to reach BJ Railway Station and then walk to reach the railway station directly.
Or from the bus station, you can walk to reach Dawanglu Station where you can take the local subway line 1 to reach Jiangumen Station, where you can change to line 2 to reach BJ Railway Station directly.