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I think to inscribe advocate the bag oar of respecting and the thing that the internal heat that wrap an oar is two concepts again, often also can hear such cant term in the industry occasionally, here the understanding that I think to pass me, talk about the individual's view. One, oar of so called bagOar of the first kind of bag is namely on the thing that likes at ordinary times, often constant territory under one's control plays, make the surface forms an oil to measure lubricant surface, what this kind of skin forms is the layer that wrap an oar, also be called at the same time hang porcelain.
The 2nd kind is thing course is old deposit, although do not have a course attrition and dish play, but in the process that deposits in quiet place, the surface formed an oxidation layer, also can form hazy, downy burnish. This kind also is called in the circle " old skin carapace "
2, the internal heat that wrap an oar is heavySilver dollar circulates up to now, because material is qualitative, cultural relic, artistic quality, have its intrinsic value, also created silver dollar of a lot of tall copy nevertheless. But the metallic attribute that silver dollar pledges because of itself material, a few old silver dollar, the Wen Run that wrap an oar, without what internal heat, but forge do through chemical composition old, form the layer that wrap an oar quickly, but internal heat is heavy, without administrative levels feeling, rubiginous scenery is gorgeous. What this kind of view points to more is copy is tasted.
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