美国UE可调差压开关带隔膜H400K-457J402K-455UE中国代理J-400K型(一个SPDT)J-402K型(二个SPDT)差压开关波纹管316L焊接///1/2”NPTF316LJ400K-S147B、J400K-S157B；黄铜波纹管1/4″NPTF镀镍黄铜压力接口J400K-147、J400K-157；丁青橡胶膜片0型圈1/4″NPTF铝制压力接口J400K-455、J400K-456、J400K-457；丁青橡胶膜片0型圈1/8″NPTF铝制压力接口J402K-540、J402K-541、J402K-542；J402K-543J402K-544J402K-55J402K-546J402K-547型号：J400K-127、J400K-128、J400K-129、J400K-130、J400K-131、J400K-132、J400K-133、J400K-134、J400K-135、J400K-136、J400K-137、J400K-138、J400K-139、J400K-140、J400K-141、J400K-142、J400K-143、J400K-144、J400K-145、J400K-146、J400K-147、J400K-148、J400K-149、J400K-150、J400K-151、J400K-152、J400K-153、J400K-154、J400K-155、J400K-156、J400K-157；J400K-232、J400K-233、J400K-234、J400K-235、J400K-236、J400K-237、J400K-238、J400K-239、J400K-240、J400K-241、J400K-242、J400K-243、J400K-244、J400K-245、J400K-246、J400K-247、J400K-248、J400K-249、J400K-250、J400K-251、J400K-252、J400K-253、J400K-254；J400K-S127B、J400K-S128B、J400K-S129B、J400K-S130B、J400K-S131B、J400K-S132B、J400K-S133B、J400K-S134B、J400K-S144B、J400K-S145B、J400K-S146B、J400K-S147B、J400K-S148B、J400K-S149B、J400K-S150B、J400K-S151B、J400K-S152B、J400K-S153B、J400K-S154B、J400K-S155B、J400K-S156B、J400K-S157B；J402K-S147B316不锈钢波纹管J402K-S157B316不锈钢波纹管J402K-147黄铜波纹管J402K-157黄铜波纹管J402K-455***橡胶膜片，O形密封圈J402K-456***橡胶膜片，O形密封圈J402K-457***橡胶膜片，O形密封圈)