PetroChina LOC now has district sales offices for the Northeast, North, Central-South, east, Northwest, and Southwest regions.
中国石油现在东北，华北，中南，华东，西北以及西南等地区拥有地区销售部门。
PetroChina LOC now has district sales offices for the Northeast, North, Central-South, east, Northwest, and Southwest regions.
中国石油现在东北，华北，中南，华东，西北以及西南等地区拥有地区销售部门。
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