0 (wood, tissues, toilet paper, etc.) made of three layers joined together --
1 (wool) consisting of three threads --
Initially its product was largely flat-woven ingrain carpeting, an inexpensive type of carpeting, but over time it added more expensive weaves, such as three-ply ingrain and loop brussels.
The fuselage was deep bellied, flat sided, constructed from wood and covered with three-ply.
The food bags are also three-ply for strength.
Commercially they are distinguished as single, double, three-ply and four-ply crapes, according to the nature of the yarn used in their manufacture.
The fuselage was built up on six spruce longerons, with bulkheads (formers) of spruce and three-ply.
Other refinements include aged plastic parts, three-ply parchment pickguard and chrome hardware.
Construction was mainly of wood, with spruce frames and three-ply birch covering, and the wings had vacuum-operated split flaps.
It makes napkins in ultra, two-ply and three-ply dinner napkins, plus value one-ply luncheon napkins.
