BAIJIAN - Third party testing organization
標簽"Pre-tensiontestoftor"
以下是與標簽 "Pre-tensiontestoftor"相關聯的文章
Pre-tension test of torsion shear type high-strength bolt connection pair of steel structure connect
Test objectSteel structure connection fastenersTest itemsTest of anti-slip coefficient of friction surface of high-strength bolt connection pairTest standardGB/
