ບ້ານ > ກ່ຽວ​ກັບ​ພວກ​ເຮົາ > ໃບຢັ້ງຢືນຂອງພວກເຮົາ

ໃບຢັ້ງຢືນຂອງພວກເຮົາ

ວິສາຫະກິດເຕັກໂນໂລຢີລະດັບສູງ, ລະບົບຄຸ້ມຄອງຄຸນະພາບ ISO9001 ແລະລະບົບຄຸ້ມຄອງສິ່ງແວດລ້ອມ ISO14001.



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