ABRASION RESISTANCE

SIDOARJO, 19/11 - ABRASIAING. A number of workers are among hundreds of hexapods (betons of water signatures), in Kali Porong Sidoarjo, Thursday (19/11). The hexapod creation to withstand abrasion caused by the drain of the Kali Porong water flow, as well as the anticipation of water lubrication when the rain falls. PHOTO ANTARA/Eric Ireng/Koz/hp/09.