Starlac Industries manufactures Double C Core and Clip, EE - 574. Starlac Industries is an ISO 9001: 2000 certified manufacturer of scientific instruments. The Double C Core and Clip features low loss iron strip laminated core used in forming a rectangular core 90 x 50 x 22 mm approx. With cross section of 22 x l2 mm and cut across the middle. This Double C Core and Clip is supplied with a strong steel clip helps in holding the two pieces together.