1, when grinding the stainless steel elbow to use 80-segment wheel, black is more easy to use, with red, must be slow, can not use pressure, try to put the grinding machine polished.
2. All of them have been rubbed before they start to re-grind the once-for-320 vane grinding wheel. The 320-mesh wheel must be polished very carefully, otherwise it will leave 80-mesh grinding wheel scratches.
Alloy elbow also need to be polished.
Zhenggang Industrial Park, Yanshan County, Cangzhou City Hebei Province, China.
No.8013 FuHuaHongYan Building,HongYan South road,Chaoyang District ,Beijing ,P.R.CHINA
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