... for prestressed concrete Parts: anchor, wedge, block, spiral, duct payment : L/C , T/T modle:different Description: post ... ; stressing / tensioning accessories for single / multi PC strandsProducts: round anchor, flat/slab anchor, circle anchor, P-type / H ... /backing/base/bearing plate, spirals, steel/plastic duct/pipe/tube/couple, coupler/connector/joint etc. Material: alloy steel, casting iron ...