main check valve

基本解释

At present, we develop and produce the main products including butterfly valve, ball valve, check valve, gate valve and so on.
目前，开发生产的主要产品有蝶阀、球阀、止回阀、闸阀等。
www.cr-expo.com
When more than one boiler is connected to the main steam header, a stop check valve should be installed in the pipeline between each boiler and the header.
如果连接主蒸汽热水器的锅炉不止一个，则在每个锅炉与热水器之间的管路上都应该安装一个截止止回阀。
At present, the development and production of the main products are butterfly valve, check valve, gate valve, ball valve, strainer valve, globe valve, slurry valve, diaphragm valves and so on.
目前，开发生产的主要产品有蝶阀、球阀、止回阀、闸阀、截止阀、浆料阀、隔膜阀等。
www.cr-expo.com