. All work is done at our facility by highly trained technicians. All work is done at our facility by highly trained technicians. All work is done at our facility by highly trained technicians. We offer competitive prices and service delivered with courtesy and professionalism. We offer consulting and contract engineering services for prototyping and product development. We offer competitive prices and service delivered with courtesy and professionalism. We offer consulting and contract engineering services for prototyping and product development. All work is done at our facility by highly trained technicians. CorTek Endoscopy, Inc. Dedicated primarily to the field. All work is done at our facility by.