Aluminium foil foil rolling mills to the desired thickness, or by continuously casting and cold rolling. To maintain a constant thickness in aluminium foil production, beta radiation is passed through the foil to a sensor on the other side. If the intensity becomes too high, then the rollers adjust, increasing the thickness. If the intensities become too low and the foil has become too thick, the rollers apply more pressure, causing the foil to be made thinner. The continuous casting method is much less energy intensive and has become the preferred process. For thicknesses below , two layers are usually put together
Tin Tin Daily News Tin Tin Daily News Tin Tin Daily News also known as Tin Tin Yat Pao was a newspaper in Hong Kong, published between 1960 and 2000. In later years it took a pro-Beijing editorial stand. It was founded by the Wai Kee-shun family, who made their fortune in pharmaceutical industry and was the first colour-printed newspaper in Hong Kong. The newspaper was published by Tin Tin Publication Development Limited and was printed by sister company Tin Tin Colour Printing Company Limited. However, the publishing rights was owned by Tin Tin Yat Pao (International) Limited, which was majority owned by bank.