PAP 20 21 22

PAP 20， PAP是指可回收，20是指瓦楞紙板。 ... pap是Recycle logo PAP，corrugated cardboard的標誌“國際通用資源回收編碼”之一，#21 PAP...

There are three types of paper recycling codes: Cardboard (PAP-20); Mixed Paper (PAP-21); Plain P...

PAP是可回收的硬纸板的意思。 PAP20=corrugated fibreboard瓦楞纸板。 PAP21=non-corrugated fibreboard。 PAP22=paper。

20 Pap. Cardboard. 21 Pap. Mixed paper (often found in magazines, mail). 22 Pap. Paper (letter/pr...

#20 C PAP ... #21 PAP. Other paper. Mixed paper magazines, mail. #22 PAP ... http://en.wikipedia....