K-TECH HIGH PERFORMANCE SHOCK SPRING K-Tech shock springs are manufactured from the highest grade Chrome Silicone wire, each spring is cold coiled, heat treated, pre-set and ground to length. Phosphate coating is then applied to protect against corrosion and then powder coated before the part number is applied. All springs are manufactured to DIN 2095 grade1. Cold coiled Heat treated Tempered Shot peened Ground ends Zinc phosphate coated Epoxy powder coated Part number printed