摘要：我们平时见到的塑料管多为白色、蓝色和灰色，有人说白色塑料管无毒，灰色塑料管有毒，也有人认为灰色塑料管就是再生管，不愿使用，其实管材有毒无毒并不取决于它的外表颜色，而取决于它的内在质量
The plastic pipes we usually see are mostly white, blue and gray. Some people say that white plastic pipes are non-toxic, while gray plastic pipes are toxic. Others think that gray plastic pipes are recycled pipes and are unwilling to use them. In fact, the toxicity of pipes does not depend on its appearance color, but on its inner quality. The so-called white color, blue color or gray color is produced by our company according to relevant regulations and the special needs of users, adding titanium dioxide, titanium blue or carbon black to the raw materials respectively. Whether white, blue, or gray pipes are toxic or non-toxic depends on whether the content of lead, cadmium, tin, mercury, and vinyl chloride monomer inside the pipe meets the national standards. It is unscientific to generally regard gray plastic pipes as recycled pipes. The sources of recycled pipe materials are different and the colors are mixed. For the sake of appearance, manufacturers must add a certain amount of colorant to deepen the color and dress up the appearance, either gray or black, but it cannot be concluded that all gray and black plastic pipes are recycled pipes.
The plastic pipes we usually see are mostly white, blue and gray. Some people say that white plastic pipes are non-toxic, while gray plastic pipes are toxic. Others think that gray plastic pipes are recycled pipes and are unwilling to use them. In fact, the toxicity of pipes does not depend on its appearance color, but on its inner quality. The so-called white color, blue color or gray color is produced by our company according to relevant regulations and the special needs of users, adding titanium dioxide, titanium blue or carbon black to the raw materials respectively. Whether white, blue, or gray pipes are toxic or non-toxic depends on whether the content of lead, cadmium, tin, mercury, and vinyl chloride monomer inside the pipe meets the national standards. It is unscientific to generally regard gray plastic pipes as recycled pipes. The sources of recycled pipe materials are different and the colors are mixed. For the sake of appearance, manufacturers must add a certain amount of colorant to deepen the color and dress up the appearance, either gray or black, but it cannot be concluded that all gray and black plastic pipes are recycled pipes.
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