PPlastics in gearsPlastics in gearsde Yarsley Research Laboratories.Ediciones (1)Plastics in gears. (1977)Fulmer Research Institute · inglésMás obras de Yarsley Research Laboratories.RReport on degradable plasticsReport on degradable plasticsRReport on disposal of plasticsReport on disposal of plasticsTThermoplastics elastomersThermoplastics elastomers