Cov menyuam yaus sab nraum zoov ISO pheej yig vaj chaw ua si 75 huab tais rau kev lag luam

Nov yog SPIRIT chaw ua si 75 poj huab tais zej zog ua si qhov project.

Cov khoom tseem ceeb ntawm chaw ua si 75 huab tais yog HDPE ntawv, galvanized steel thiab LLDPE yas.

Qhov chaw ua si 75 huab tais khoom muaj peev xwm yog 20-30 tus menyuam.

Lub sijhawm lav ntawm chaw ua si 75 huab tais yog 8 xyoo.