acid: fine alkali: normal oxidation resistance: fine abrasive resistance: excellent flame resi Company IntroductionYancheng Boing Filter Co., Ltd. has 20 years' history, covering an area of 52,700 square meters. Now there are more than 300 staff members with rich experience. Our main products are: PPS, PTFE, P84, basalt, acrylic, FMS, PTFE, glass fiber, polyester and aramid fiber filter bags; ...