dimethyl benzyl amine_n coco 1 3 diaminopropane

Taiwan’s labor working environment air pollution allowable concentration standard stipulates that the average allowable concentration of dichloroethyl ether (Dichloroethyl ether) in the workplace for eight hours per day (PEL-TWA) is 5 ppm, 29 mg/m3.

“In April, monitoring data shows that exports have shown a recovery growth.” Li Kuiwen, a spokesperson for the General Administration of Customs, said in an interview that the current situation facing my country’s foreign trade is not optimistic, and we must deal with various complex and difficult situations. Preparations, but my country’s foreign trade is resilient and the long-term development trend remains unchanged.