How to clean stainless steel to be as bright as new

1. First use a brush to take an appropriate amount of stainless steel pickling passivation paste and apply it evenly on the surface of the stainless steel; 2. Observe the condition of the passivati

Metal for doors and windows

The section of solid-web steel doors and windows is solid and hot-rolled with ordinary carbon steel. According to its cross-sectional form, it is divided into several specifications. Compared with ope