The types of dangerous cargo: second-class , third-class, fourth-class, fifth-class, sixth-class, eighth-class and ninth-class | There are more than 100 dan- gerous cargo transportation vehicles and more than 200 professional chemical opera- tors with certifications | Visual vehicle management tracking system |
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Mr 孟 LANDLINE:021-67265123 MOBILE :18502136685 EMAIL: dayou66@dayou56.com |