1.sight glass-Solder Type, for refrigeration and air conditioning 2.excellent quality and service, customer size is available sight glass-Solder Type, for refrigeration and air conditioningHH No.Tube O.D.201SG02S1/4" Solder201SG03S3/8" Solder201SG04S1/2" Solder201SG05S5/8" Solder201SG06S3/4" SolderPrimary Competitive Advantages:Quality Approvals Price Service Certificates:ISO9001: 2008 ISO14001: ...