According to the national unified rules fixed quantity calculation: ( 1) Installed valves, flange, all kinds of casing production, pump room between pipeline installation and piping system strength test, leak test execution sixth volume 'industrial pipe installation engineering' project accordingly. ( 2) Fire hydrant pipes installed, outdoor water supply pipe and tank production, executive 8 copies the water supply and drainage, heating, gas installation & gt; The corresponding project. ( 3) All kinds of fire pump, such as the voltage stabilizing pump installation and secondary grouting, perform the first volume of the related page of the mechanical equipment installation engineering. ( 4) Various kinds of instrument installation, with the telecommunications signal of valves, water flow indicator, pressure switch wire and wire in the school, the first ten copies of the related project of the automatic control instrument installation. ( 5) Such as all sorts of equipment support of fabrication and installation, perform the fifth 'stand for equipment and process engineering, metal structure fabrication and installation projects accordingly. ( 6) Piping, equipment, support, flange joint oil cleaning brush, execute 11 copies the brush oil, corrosion resistance, thermal insulation engineering project accordingly. ( 7) System debugging book 7, chapter 5 corresponding project execution. Execute 11 copies the brush oil, anticorrosion and thermal insulation engineering,
The increasing consumption demand in key segments such as cast iron valve, resilient valve and y gate valve have been driving the sales of and its derivatives worldwide.
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