... concrete Parts: anchor, wedge, block, spiral, duct payment : L/C , T/T modle:different Description: post-tensioned prestressed anchorage system; stressing ... . Components: anchor head/plate/ring, 2/3pcs grips/wedges, block/backing/base/bearing plate, spirals, steel/plastic duct/pipe/tube ... PC bars 7.1/9.0/25/32mm etc. In post-tensioned structure of pre-stressed concrete, anchorage anchors play a ...