I'm sorry to hear that your had a bad experience in Chinese plywood .
Now I explain the market situation which may be useful:
1. If you buy Chinese plywood, choose certified Chinese plywood, or buy
plywood from certified suppliers (ISO,CARB,CE...);
2. Note that: The Chinese plywood market is a competitive market ! Nobody
can buy very high quality plywood at very low price . If the prices are very
low , the quality certainly will be poor.
3. Chinese big factories produce high quality plywood, while the prices are
4. Before your buying plywood, confirm with sellers whether the quality can
meet your requirement . For example, don't use non-structural plywood for
structural purpose; don't use interior plywood for exterior applications...
If you found the plywood is poor-quality, suggest your supplier import
higher quality plywood from big suppliers.