They can be made of wood pulp which has greater absorbent power or filled with cellulose gel which is suitable for smaller leaks.
The products in question are phosphorus, silicone carbide, wattle extract, plywood, wood pulp, newsprint, ferro chrome, ferro silicone, aluminium, lead and zinc.
I would put that on the unnecessary side as opposed to iron ore, nickel and wood pulp on the necessary side.
Spruce timber is used for numerous commercial purposes, for example, scaffold and other poles, dockyard shorings, bond shooks, saw timber and wood pulp.
The difficulty is that we are already short of water, and a ground wood pulp mill requires a great deal of water.
The level of production would provide the raw materials for any further investment in wood pulp.
He has just told us that we may have a dutyfree quota of wood pulp, but, so far, that is all.
In view of the world shortage of wood pulp, we should welcome the increased use of alternative materials.