Material
Common rubber:NBR、FKM/FPM、SILICONE、ACM、PU、PTFE etc , hardness range 60~90 shore A, customer can select any color.
Framework material:cold or hot rolled steel strip/plate, stainless steel etc
Spring material: steel wire, piano wire or stainless steel wire etc

Common model:
Framework included single-lip(B), Framework included double-lip(FB),no-spring(BV), Single lip outer frame(w)，Double lip outer frame(FW)，assembly single-lip(z), assembly double-lip(z). One-way return-type(SR/DL),pressure-resistant(NY) and so on.

We can design according to customer’ sample. Or help customer select suitable type.