Pressure Type Manhole Cover & Non-pressure Type Manhole Cover Pressure Type Manhole Cover Application Pressure vessel pressure type manhole cover series is mainly used in food, wine, beverage a
Diaphragm valve is a type of health,widely applicable to the health level of the wine, dairy products,beverages and other food industry as well as aseptic conditions of the pharmaceutical field, to achieve control of the pipeline fluid and on/offtask.
－Carbon:The higher the carbon content is,the higher the steel hardness is,but the poorer its plasticity and tenacity are. － Sulfur: It is a hazardous impurity in steel. Steel with a high sulfur conte
