In this example, the first layer of tar felt is nailed to the boardIng and the subsequent layers are bonded to each other In hot tar.
此例中，第一层油毡是用钉子钉在木板上的。上面的几层油毡是用热沥青粘合起来的。
2
Asphalt, coal tar enamel, fusion-bonded epoxy, polyethylene tape, 2-layer PE and 3-layer PE coatings may be used for corrosion control of underground pipelines.