... retain providers a valve stop that assures positive valva alignmentapplicationTGW series coupling with their threaded union locking systerm and precision ball0 ... coat.5.Be applicated for agricultural, industrial,forestry,and other hydraulic demanding applications.6.payment: T/T advance for small sum ... of delivery: 7days8.the peried of valid :20 days TGW series hydraulic coupling (stainless steel)