Materials and articles in contact with foodstuffs - cutlery and table holloware - part 2 : requirements for stainless steel and silver - plated cutlery iso 8442 - 2 : 1997 ; german version en iso 8442 - 2 : 1997
12.
This commemorative medallion set includes two pieces both with a diameter of 40mm , one made of gold - plated copper and another of silver - plated copper by coinage technique
13.
Materials and articles in contact with foodstuffs - cutlery and table holloware - part 3 : requirements for silver - plated table and decorative holloware iso 8442 - 3 : 1997 ; german version en iso 8442 - 3 : 1997
14.
Amazon ' s thickly silver - plated fpc copper rca plugs use a patented design that eliminates the distortion caused by the extra contact inside most plugs
15.
Soft carbon steel sealing gasket of 100 brinnel , silver - plated for soft corrosion - resistant coating , provides large contact area for perfect sealing . graphite gaskets are offered as an option ( see below )
16.
2 in this text the process of optical fiber metallic are introduced which include rubbing , activation , surface silver - plate & heat treatment . and through an experiment we verified the influence of the fiber - optic quantity to output power
17.
The annual outputs come to five ton in aluminum shoe eyelet , one ton in copper shoe eyelet and 30 million sets in shoe button . in accordance with the material used , the products of shoe eyelets are classified into three categories including copper , aluminum and iron . the aluminum shoe eyelets are coated on the surface with natural color , silver - plating , colorful porcelain coating , gray porcelain coating , bronze - colored porcelain coatng and electrochemical coloring
