I remember that the carburetor diaphragms in motorcycles used to be reinforced with fabric, but now the carburetor diaphragms sold on the Internet are all rubber. Is it means to reduce costs?

Turbo Actuator Waste-gate wastegate Turbocharger Diaphragms - GENERAL SEALTECH LIMITED
Favicon 
idiaphragm.com

Turbo Actuator Waste-gate wastegate Turbocharger Diaphragms - GENERAL SEALTECH LIMITED

Keywords:
rubber diaphragm, carburetor diaphragm, fabric diaphragm