For cultural reasons, enumerating the precise number of females has been difficult--and estimates of the percentage of females in the population range from 47.5 percent in the 1981 census to 48.3 percent in the 1987-88 Labour Force Survey.
Substrate (printing) Substrate is a term used in a converting process such as printing or coating to generally describe the base material onto which, e.g. images, will be printed. Base materials may include: plastic films or foils, release liner.
Cement Polymer: Similar to concrete, but can be printed over a fiber framework, which makes the polymer stronger than concrete. Ceramic Powder: A material used in a type of 3D printing called selective laser sintering. The powder is fused together with a high powered-laser.