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7 types of flange contact faces
The basic contact faces of flanges are flat faces, raised faces, male faces, female faces, tongue fa...
Unlock with your minds
Make Security Technology Co., LTD believes that the intellectualization progress is accompanied by e...
The overview of a gate valve
A gate valve is one of the most common types of valves in isolation valves. A gate valve can be foun...
Knowledge of a spiral wound gasket
A spiral wound gasket is one of the most widely used gaskets currently. A spiral wound gasket c...
Manufacturing Technique & QC
TOPPLA owns more than ten large-scale machines and can manufacture plastic toilet product with almos...
ABOUT US
Xiamen Toppla Material Technology Co., Ltd is a technology and innovation-based enterprise, sp...
Global Sales Network
TOPPLA portable toilet is strong and durable and has different kinds. Customers can choose the ...
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Installation Instructions of Valves (Part Two)
Installation of valves Valves must be installed carefully, and avoid hitting valves which are made o...
Installation Instructions of Valves (Part One)
Directions and positions of valve installation Many valves such as globe valves, throttle valves, re...
Basic Knowledge of Brass (Part Three)
Tin Brass Adding tin to brass can significantly improve heat resistance of the alloy, which can espe...