4B [Issues covered and excluded (issues excluded): validity under domestic law (validity of general conditions of contract)];

26A [Notification of avoidance: effective declaration of avoidance required];

33A [Time for delivery: on date fixed by or determinable from contract];

39A ; 39C [Requirement to notify seller of lack of conformity: buyer must notify seller within reasonable time; Other issues concerning notification: return of defective goods constituted valid notice];

49B [Buyer's loss of right to declare avoidance after delivery];

50A [Buyer's right to reduce price for non-conforming goods];

78B [Interest on delay in receiving price or any other sum in arrears: rate of interest]