German special forces LIT cast steel valve main products: Imported steel control valve, electric cast steel valve, pneumatic control valve cast steel, cast steel Self-regulating valve.
德国力特lit铸钢调节阀的主要产品有：进口铸钢调节阀，电动铸钢调节阀，气动铸钢调节阀，自力式铸钢调节阀。
This invention provides a set of self-powered mechanical device, an auto-regulating movable weir-plate, a back-flushing buffer and lift-pull valve.
本发明提供一套自力式机械装置、自动调节活动堰板、反冲阻流器、提拉阀。
This invention provides a set of self-powered mechanical device, an auto-regulating movable weir-plate, a back-flushing buffer and lift-pull valve.
本发明提供一套自力式机械装置、自动调节活动堰板、反冲阻流器、提拉阀。
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