Methods for forming anisotropic features for high aspect ratio application in etch process are provided in the present invention. The removable drum surface is replaceable if damaged. The structure of fibers is constituted by a single ply of a unit weight of at least about 400 gm2, which ply is impregnated with resin at an impregnation quantity of at least 40%, then there is emplaced on one of the surfaces of the single ply a coating of a sealing agent. Other embodiments are described and claimed. Vendors can indicate, for example, the prices of their goods, times and places that their services are available, etc. for 30 seconds to 180 minutes by spraying or dipping, then washing it.