一般来说，喷涂底漆多选用大口径喷枪，喷涂中间涂层时选用中口径喷枪，喷涂面漆时多选用小口径喷枪。
In general, more choice of large caliber gun spraying paint, spraying coating used in intermediate caliber gun, small caliber gun with spray paint.
一般来说，喷涂底漆多选用大口径喷枪，喷涂中间涂层时选用中口径喷枪，喷涂面漆时多选用小口径喷枪。
In general, more choice of large caliber gun spraying paint, spraying coating used in intermediate caliber gun, small caliber gun with spray paint.
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