FULL TIME & PART TIME JOBS MILLS RIVER, NC. Injection Mold Operators & Assembly. 1st & 2nd Shift Available. Skyline Plastic Systems, Inc. 2220 Jeffress Road, Mills River NC 28759. Contact Info at www.skylineplastics.com. Skyline is a family owned custom plastic injection molding company. Skyline expects employees to be reliable, punctual, and dedicated to their job. Employees need to be able to work well with others in a production environment. M...