Discuss the basic facts and legal problems stated in the D & H PipingSystems Pty (Ltd) v Trans Hex Group Ltd and Another 2006 (3) SA 593 (SCA)-as to the liability of a manufacturing seller. In your discussion of this case, you may refer to similar cases as well, but if you do so, you must state the basicfacts and the legal problem of the similar case(s) you are usingand give both short names of the parties to the similar case). [It is not enough to say for example in "John's case".