The "Conformity and Certification Conference in Rail Systems" will be held by the Rail Systems Association on February 28, 2020.
ສະມາຄົມລະບົບ Rail Rail ຈະຈັດ "ກອງປະຊຸມຄວາມສອດຄ່ອງແລະການຢັ້ງຢືນລະບົບລົດໄຟ" ໃນວັນທີ 28 ກຸມພາ 2020.