Ils posent des isolants rigides ou semi-rigides.
Electrician (except for security systems) Bricklayer-Mason Bricklayer-masons cut, saw and use mortar, cement or other adhesive material to joint-point and lay masonry materials such as bricks, blocks and stone.They erect walls, foundations, partitions, chimneys, fireplaces and kilns, and may also apply refractory cement.Giga-fren Giga-fren