This 10 years, our filter and valve

This 10 years, our filter and valve business are getting smaller.
We are really regret to say that we don't have capability to develop this.

ผลลัพธ์ (อังกฤษ) 2:

This 10 years, our business are Getting Valve Filter and smaller.
We are Really regret that we do Not Have to Say to Develop this capability.