... 2) Competitive price, 3) Prompt delivery 4) Professional service Features of our molded rubber bellows;· Working temperature: -100 to +300 degrees;· Hardness ... usually in 1~2 weeks. Please see the following features of all kinds rubber material, please choose the suitable one for ... , including DuPont, Dow Corning, Lanxess AG, and Baosteel. All of our rubber products are certified to ASTM, DIN, JIS, AMS ...