IGS - GS3994-I 47 17 referenced Gas spring product produced by high technology. GS3994-I 47 17 became irreplaceable of foundations. GS3994-I 47 17 referenced product which is satisfy the customer's needs, offers advantages of quality and cost. It produced result of tests of laborotory for years. GS3994-I 47 17 referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.