Stainless Steel Wafer Swing Check Valve 8" DN200 AISI316Wafer is the name of the triangular shape on the closure of the letter envelope in English. So it is used to cover the letter. Stainless St..
Stainless Steel Wafer Swing Check Valve 10" DN250 AISI316Wafer is the name of the triangular shape on the closure of the letter envelope in English. So it is used to cover the letter. Stainless S..
Stainless Steel Wafer Swing Check Valve 12" DN300 AISI316Wafer is the name of the triangular shape on the closure of the letter envelope in English. So it is used to cover the letter. Stainless S..