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tumor markers clinical biochemistry diabetes drug abuse kidney markers urine test autoimmune infectious diseases inflammation metabolism neurology serology serum protein hormone animal diagnosis others _serial number: _shaanxi polyurethane insulation pipe, shaanxi direct buried prefabricated insulation pipe, shaanxi sida hvac engineering co., ltd. was founded in 1998. it is one of the manufacturers in the northwest region that provides the development, production, sales and after-sales services of polyurethane direct buried insulation pipes and polyurethane insulation materials. it is a professional modern enterprise integrating r&d, design, production, construction and supporting technical services. the company is mainly engaged in the production and installation of polyurethane direct buried insulation pipes and high-temperature steam direct buried composite insulation pipes, anti-corrosion and insulation construction of petroleum and natural gas pipelines and tanks, polyurethane tube shells and high-density polyurethane pipe support _the story behind reveals the truth of the dispute and the deep reasons _protocol type
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