chemical filter meaning in Chinese

化学过滤器
化学滤毒器

I would like to do some research and improvement together with senior experts in petrochemical and chemical filter industry . welcome all friends worldwide to shengda for cooperation and negotiation
我愿向同行业的资深前辈和有识之士学习，共同探讨共同进步，热忱欢迎海内外的同仁和朋友前来我公司洽谈合作。
I believe that shengda will be the best partner for more and more enterprises in petrochemical and chemical filter industry . also , based on your support and help , i am very confident that we will not make every shengda users disappointed
我公司坚持站在用户立场，维护用户利益，满足用户需求，力求尽善尽美，已在过滤净化行业内取得了一定的成绩。