E7016-G 

Used for low alloy steel E36,DE36,A537, such as offshore     platforms, shipping pressure vessels.

E7015-G 

Used for shipping     vessel, bridge, high pressure vessel, boiler, offshore platforms and etc.

E7015-G 

Used for corrosion     resistant steels which content molybdenum, vanadium or low aluminum. Such     as 12MoVA1 and the steel that hydrogen sulfide resistant with high     temperature 400℃.

E8015-G

Used for medium carbon     steel and low-alloy steel of 15 MnTi,15 MnV.

E9016-D1

Used for medium carbon     steel and high-strength low-alloy steel such as 15MnVN.

E9015-D1

Used for medium carbon     steel and high-strength low-alloy steel such as 15 MnVN.

E10015-D2

Used     for low-carbon structural Steels such as 15 MnMoV,14 MnMoVB,18MnMoNb, the structure can be     work under the condition of welding and back fire(550-650℃).

E11015-G

Used for low-carbon     high intension structural steels of tensile strength about 740MPa.

E11015-G

Used for grade of     high-strength steel. Such as 14 MnMoNbB and WEL-TEN80

E12015-G 

Used for low-carbon     high intension structural steels of tensile strength about 800MPa.

E12015-G 

Used for defect welding     repair of train clasp that made of grade E steel.