Precision filter ( also known as security filters) , whose cylinder shell is generally made of stainless steel, and the inner shell with PP melt-blown line burned, folded, titanium filters, ....
QINGDAO " DANJIA" is a new BRAND for purifiers created by Qingdao Danjia machinery, so far there are more than 50 senior technical researchers on new products development; For many yeas we have....