美国SUN单向阀代表型号:CXBA-XCN,CXDA-XCN,CXFA-XCN,CXHA-XCN,CXJA-XCN,CXAD-XCN,CXCD-XCN,CXED-XCN,CXGD-XCN,CNCC-XCN,CXAE-XCN,CXCE-XCN,CXEE-XCN,CNAD-XCN....)