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global-standard (shanghai) testing technology co., ltd. (gst) is a third-party testing organization with an independent and impartial status. gst… |
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address: number19,lane156 changji road,jiading district,shanghai telephone:( 86)021-39549731 fax:( 86)021-39549732 mobile phone:( 86)021-39549731 |
( 86)021-39549731
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