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                              Shandong plastic piping systems engineering technology research center

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                              Shandong Luyu plastic industrial (group) co., LTD

                              Plastic industrial (GROUP) co., LTD. Shandong sajduda "LANDUNI GROUP headquarters is located in the state-level economic and technological development zone of dongying, GROUP with plastic pipes and rubber and plastic equipment manufacturing as the core industry, so far, with shandong sajduda, tires, rubber and plastic equipment............

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                              Shandong Bureau of quality and technical supervision, province in......

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