stainless steel coupling for plumbling 1.manufacturer. 2.material:AISI304/316. 3.OEM service ... communication . product name: stainless steel coupling for plumbling material:AISI304/316.connection ... OEM:yes.range of application:hotel,buildings,construction,marine,solar system,equipment ,eviorment protection.keyword:reducing coupling for pling ,stainless steel reducing coupling ,reducing stainless steel ...