English translation for "double non-return valve"

双向止回阀
双止回阀

Similar Words：

"double nipples" English translation, "double nipples reduced" English translation, "double nobal dysfunction" English translation, "double node parasystole" English translation, "double non-disjunction" English translation, "double normal" English translation, "double normalized and tempered steel" English translation, "double normalizing" English translation, "double nose" English translation, "double nose brick" English translation