Pipe beveling machine is used for lifting raw materials.
管子坡口机是用于起重机械的原材料。
The raw materials supply, production and application situations for aluminum plastics compound pipe are introduced.
介绍铝塑复合管的原材料供应现状、生产状况和推广应用情况；
In plastic pipe extrusion lines, for the purpose of improving the product quality, improving the geometry precision and saving raw materials, the extruder must have a stable output rate.
在塑料管材生产线中，为了提高产品的质量、几何精度和节约原材料，所用的挤出机必须要有稳定的生产率。
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