Various Bakelite knob, Bakelite star knob, turning knob --- ISO 9001 Certificated SHENGWEI,more than 20 years' service ... ·Material: ABS, Polyamide, Bakelite, Fiberglass ·Fitting: Brass, Stainless Steel or Common Plated steel·Technics: Plastic Injection Process, From 5g~1500g Persist ...