Zrenjanin, Vojvodina, Serbia - August 04, 2014: Worker is aligning pipeline made of isolated pipes in trench at building site until he is tightening welding tool.

Editorial Use Only: This image can only be used for editorial purpose. Use of this image in advertising, commercial or for promotional purposes is prohibited unless additional clearances are secured by the licensee. 123RF.com does not provide any clearance services.