Which bus should I take from Yantian to Shenzhen Social Security Bureau?

Gongjian Building 13 in Sha Tau Kok is Yantian Social Security Branch, so you don't need to go to the city. Get off at Sha Tau Kok Customs and you can see Gongjian Building. If you must go to the Municipal Social Security Bureau, take 238. Tell the flight attendant that you are going to the Social Security Bureau, and she will tell you where to get off and where to stop. I forgot, too. I remember getting off near Bagualing.