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Inner Mongolia Yidong Petroleum Fracturing Proppant Co., Ltd is Your Best Choice . As the professional manufacturer, specializing in the research, production and sales of ceramic proppant, We pay more attention to our quality-control standards . We inspect raw materials and finished products on a daily basis. All of our finished products have been tested and approved by our Quality Assurance Team before leaving the factory. We are dedicated to studying and developing more products with different strength an...
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