?????????กค???????????????????????งเ??งู??????????จข??????????????งแ??????????????????????????????????????????????????????????????????????????????????????????????????????จ?????????ก๊?
1????งึ??????Mechanically Polished????MP
???????????????????????????????????????????????????????????????????????
2???????Buffed Polished?????BP
???????????????????????????????????Ra??????????????????????????????????????????????งู????????????????????????????????????????????????
??????????????????????????????งต?????????????ศษ???????
3???????????Pickled & Passivated / Chemically Polished?????AP??CP
?????????????????????????????????????????งี??????????????????????????????????????????????ฆร???????????????????????????????????????
4????????Electro Polished?????EP
????็ณ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????
????????????????,??งึ?????????????? ??
???????????????Ra??????????????จ??
????????????๕๔??????
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