The resin part is a professional technology that can be used to insert electric heating pins and repair, so that rebars can enter building and bridge. This product is a system that uses electric heat to embed the pins directly into the resin. Classification: Plastic Repair Goods, Product Contents: Plastic Repair Kit, Electric Heating Pins for Refilling Product Name: Electric Heating Pins for Refilling (Standard Type, 200 Pieces) Product Number: HRK-550P Manufacturer: Asahi Sangyo