... 1,Cetificates:ISO 9001,CE 2,Quick delivery 3,Oem ,Odm Accept 4,Produce by international ... ball valve: 1,Size: 1/4".3/8',1/2',3/4',1',11/4',11/2',2 ... ',21/2,3',4'2,Certificate: ISO9001 , CE 3,material: brass body , brass ball ... -products .2) processing the semi-products in workshop .3) assembling the goods .4) testing the sealing in ... of customer 1/2' Long handle male& female brass ball valve