Customs tariff amendment: aeroplane engines, self-propelled trucks and steam traps now subject to revised duty treatment. Amendment replacing the Table in Notification No. 60/87-Cus. with a new Table that fixes tariff headings and ad valorem duty rates for: internal combustion piston engines for aeroplanes and their parts; self-propelled trucks (including fork-lift trucks) and parts excluding parts interchangeable with motor vehicles; and steam traps.