PVC are the grades of electrical tape classified? How do you identify the grades?
B film is between the film and C film, in short, see more, stretch tape, experience will be identified. Of course, in fact, how only manufacturers understand the price of a point of goods, right?
That is, calcium content of PVC films, the lower the level of the membrane is pure, is a film, and then the analogy is B, C film, that was a bit abstract, general identification of words, but also by experience, such as a real film tensile permanent discoloration, discoloration of white C film stretching the film, winter crisp, etc.,
PVC electrical tape is graded, such as forever solid tape, Yongle tape are sub class A, B class, C class, this classification is to go by film, a film, B film, C film, and A-level, film classification is based on membrane composition,
