Key legal question
Whether the seller breached the contract by refusing further delivery without prepayment or bank guarantee.
Extracted holding
No breach was established; the seller was entitled under the general conditions to make further deliveries conditional on adequate security after payment default.
Extracted reasoning
The buyer was in arrears at the time of the later orders. The contractual clause expressly allowed security for further deliveries, and the requested prepayment or bank guarantee was not shown to be unreasonable.