... household rubber bush, medical rubber bush, etc. Description of Lower Arm Standard Rubber Bush: 1. Materials: can be NR, HNBR, ... 8. Documents: can provide full set of documents, including PPAP, control plan and PFMEA. 9. Applications: automobile, electrical appliance, mechanical, ... other fields. 10. QC/QA: we have strict quality control and assurance systems, have 30 QC technicians and the individual ...