Brass gate vavle No leakage ISO9001 and ISO14001 Approveed J1005 Screw End Brass Gate Valve 1.Material: C3771, C37700N, CW614N, CW617N, ... ISO14001 approved Who are we and what we have?Strong support from the group, Ningbo Jintian Copper (Group) Co.,Ltd, ... -round product categories, State-level Enterprise Technology Center and Post-doctoral Research Center provide the capacity to offer customers full ...