glazing beads made of stainless steel material in grade 304 or other grade in 300 series是什么?

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glazing beads made of stainless steel material in grade 304 or other grade in 300 series是什么?
glazing beads made of stainless steel material in grade 304 or other grade in 300 series是什么?

glazing beads made of stainless steel material in grade 304 or other grade in 300 series是什么?
不锈钢材料的304或300系列磨光滚珠