Why does the surface layer of sandblasting pipe product have inconsistent density?
2020-07-13
Laizhou Qiyuan Plastic Products Co., Ltd. is a joint-stock enterprise integrating scientific research, development and production. The company was founded in 1992. After 28 years of development, it has now developed into a provincial standardized enterprise with an annual income of more than 50 million yuan. The enterprise has a strong technical R&D force, with more than 20 engineers and technicians, and more than 20 sets of test and detection equipment
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