美国UEJ400系列压力开关美国UEJ400系列，压力开关J400型(一个SPDT)黄铜波纹管1/4″NPTFJ400-126、J400-134、J400-137、J400-144、J400-146、J400-156、J400-164；Phosphorbronze波纹管1/4″NPTFJ400-270、J400-274、；BunaN膜片1/4″NPTF铝质压力接口J400-440、J400-441、J400-442、J400-443、J400-448、J400-449、J400-450、J400-451、J400-452、J400-454；316L膜片1/4″NPTFJ400-571、J400-572；波纹管316L焊接///1/2”NPTF316LJ400-S126B、J400-S134B、J400-S137B、J400-S144B、J400-S146B、J400-S156B、J400-S164B;波纹管316L焊接///1/4”NPTF316LJ400-358、J400-361、J400-376；)