Interested in carbide insert to sell in China

1.We want to buy second-hand carbide insert, all models can be accepted, give priority to with C type and W type. 1-2 tons monthly demand.
2.The purchase requests of second-hand carbide insert:① undamage, ②allow 3% other material insert
3.We also purchase CBN、PCD,but the amount is not large.
Hope to be able to quote FOB price for a long-term cooperation.