Refining restriction

Gear below level 10 can only be enchanted.
Gear which was made by the refining system can be enchanted again and again. The system only saves the last enchantment attribute bonus.
Gear level 1-level 10 can only be enchanted with a single attribute again and again, but the system only saves the last enchantment attribute.
Gear level 1-level9 won't have resistance added after being enchanted. If the gear has added resistance, then it cannot be enchanted.
It is judged that players cannot trade, donate and discard once they have opened the production interface so as not to copy the materials.

Refining skill upgrade:

Refining skill upgrade method:
Choose to learn skill (Only)
Refine with the corresponding refining skill in order to accumulate proficiency.
The former skill proficiency will be reverted back to 0 after every upgrade.
The skill proficiency won't be reverted to 0 but will be accumulated after the skill reaches level 13. The upper limit of proficiency is 100,000.

Gear enchanting system:
Gear enchanting system is used to meet the upgrade needs of gear level 11-13. It can not only upgrade the gear's attribute, but also make the gear's structure stronger.

Gear production method:
Find the Production Skill Mentor
Talk with him to open the gear production skill interface
Put the required materials and gear in the first slot of the item column.
According to the interface order, right click the gear and materials in the item column.
A: Gear
B: Ore, gem or materials
C: Additive
D: Additive
E: Additive
Place the required materials in the right order column according to the production, enchanting or adding formulas. When the formula is correct the corresponding function key will flash and the other keys will be unavailable. If the formula is useless, the three keys cannot be used.

After pressing the function key, numbers will jump into Places 1,2,3,4. About three seconds later, the four places will show the attribute number, 4 attribute numbers at most, 1 at least.

When the mouse cursor stops by Production, Enchanting and Adding Keys, the corresponding formulas will be demonstrated.

Skill Proficiency Accumulation Method:
Players cannot change their Production Skill Mentor nor have another Gear Mentor once they have chosen one.
The former skill proficiency will be reverted to 0 after every upgrade.
When the production skill reaches the requirement of character upgrade, players will level up automatically.
Gear level 1-10 with gems can only be enchanted and added proficiency increases 1 each time.
Gear level 1-10 without gems can be enchanted and make upgrade production. Proficiency will be calculated according to the produced attribute number.
Gear level 11-13 can only be upgraded and enchanted, but cannot have gems added.
The higher the proficiency is; the higher the attribute that will be obtained during enchanting and adding. Achievement is only used to record production times, it is useless.
The more materials used in producing gear, the higher the proficiency will be.
Materials must be used for enchanting, additive is optional. But the effect of enchanting without an additive is only 20% of that of enchanting with an additive.