2. be attention of the dust keep away to the inks after open the bottle.
-- Quality and raw materials:
1. 100% pre-tested on corresponding printer;
2. Strict production operation;
3. Environmental protection material;
4. Each batch of ink from production has to be passing our standard which is +/-0.03% from OEM ink. All batches are backed by 1.5-2 year stability and consistency warranty, retain samples are offer for our customer.