Our two ISO 9001:2008-certified factories ensure a monthly output of 1,000 sets of seals, 2,000 sets of diaphragm membrane couplings, 100 sets of seal auxiliary systems and 600 sets of welded metal bellows and instruments. The whole production process from material inspection to finished products are also under strict control of QC system of ISO9001：2008. Our 20 R&D specialists have earned us patents for our scale-resistant welded mechanical seals. Our passionate salesmans are always waiting for your calling to support you.