Shanghai Yueguan Hardware Co.,Ltd.

上海跃冠五金有限公司

(UNI 5927)

material	Alloy Steel
grade, rigidity	grade 12.9
Coating	black oxide coating
跃冠五金长期供应UNI5927内六角尖端紧定螺钉，材质合金钢、不锈钢

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