Caz is a director of Dull plc, but she also carries out her own business as a wholesale supplier of specialist metals under the name of Era Ltd.Last year Dull plc entered into a contract to buy a large consignment of metal from Era Ltd. Caz attended the board meeting that approved the contract and voted in favour of it, without revealing any link with Era Ltd.Required:Analyse the situation explaining any potential liability that Caz may have in relation to the sale of the metal to Dull plc by Era Ltd. (10 marks)

重联柱塞阀凸轮得到最大降程时，自阀手柄应处于（）。

A、1～5位

B、手柄取出位

C、过量减压位

D、紧急制动位