... wedges and anchor for prestressed concrete Parts: anchor, wedge, block, spiral, duct payment : L/C , T/T modle:different Description: post- ... circle anchor, P-type / H-type dead anchor, coupler, duct and couple, mono/multiple prestressing jacks, oil pump power pack ... /wedges, block/backing/base/bearing plate, spirals, steel/plastic duct/pipe/tube/couple, coupler/connector/joint etc. Material: alloy ...