YSK the "chasing arrows" triangle symbol on plastic containers is NOT the recycling symbol. It just tells you what kind of plastic it is. And if it's not #1 or #2, it's probably not recyclable.
from /r/YouShouldKnow
YSK 塑料容器上的 "追逐箭头 "三角符号并不是回收符号。它只是告诉你它是什么类型的塑料。如果它不是#1或#2，它可能就不能被回收。