دائرة كهربائية تضحية أسقف schraube m30 Germany ألكسندر جراهام بيل لاستكمال أفلام
DIN EN 14399-10:2019 - High-strength structural bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload; German version EN 14399-10:2018
M30 x 3.5mm [6g] Metric Coarse Pitch - No-Go Ring Thread Gauge (JBO Johs Boss)
Installation accessories for subframe system
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More load-bearing capacity for large treehouses and soft trees
DIN EN 14399-10:2009 - High-strength structural bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload; German version EN 14399-10:2009
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