高分 帮忙回答几个问题

1.what should be clearly stipulated about arbitration in the sales contract

2.what should the seller and the buyer agree upon when talking about forece majeure

3.concerning commodity inspection ，what should the seller and the buyer mutually agree upon in the contract

4.what are likely to be stipulated in a sales contract when the seller and the buyer talk about conplaints and claims

5.what are the general terms in the international sales contract

the fees and how to lodge a claim

stipulate concrete situations and outline something

it is better for the seller to stipulate the inspection clause

refund and claim

FOB CFR CIF