... formed parts,manufactured to your needs,such as ,safety belt assemblies,safety belt tongues,seat belt buckles,retractors,webbing guide etc ... and acid will be detrimental.8.periodic inspection of the installation will ensure reliable service of the seat belt. (1) ... formed parts,manufactured to your needs,such as ,safety belt assemblies,safety belt tongues,seat belt buckles,retractors,webbing guide etc ...