Determine ruber year by color?

From: izgo <izgo_at_yahoo.com>
Date: Sun, 04 Mar 2007 22:30:15 -0000

Hello people,

It's possible to have some clue of a rubber batch/year by comparing
the color of them?

Tnx.

Ignacio.
Received on Sun Mar 04 2007 - 14:30:43 CET