Buying notice:
1.When we delivery, we usually use other products name to write on parcel, so can avoid high certificate costs for air transport, hope can understand this.
2. Due to international freight costs is very high, So we usually do not accept return order. If have any problem, we will do best to make compensate, thank you for understanding.
3.For lower prices or bulk prices, welcome email to us make further negotiation. We will check whether have cheaper freight costs to your address.
4.After received your payment, we will send out parcel to another city wait for delivery. Estimate can leave China to you in 3-4 days.
Index:
Content (Fe3o4) 25-35%
Oil absorption ≤0.3ml/100g
325 mesh wet sieve residue ≤3.0%
Water soluble content ≤1.0%
Moisture 6-9%
PH 0.4-1.8
Particle shape 95~105
Coloring power ≤1.0%
Color difference△E 25-35
The density is irregular
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