Cov kuab tshuaj organic ua lub luag haujlwm tseem ceeb hauv kev lag luam niaj hnub no, thiab tuaj yeem siv rau hauv kev lag luam tshuaj, tshuaj, kev lag luam tanning, metallurgy thiab electronics thiab ntau lwm yam.Qee cov ntawv thov nthuav qhia cov kev xav tau siab dua rau cov pu...
Yam khoom: JZ-ZMS3;JZ-ZMS4;JZ-ZMS 5
Nyeem ntxiv