Hex socket bolt
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Hex bawuti mkulu mphamvu 4.8 6.8 8.8 10.9 12.9 Zinc Plain muyezo kukula hex socket mutu bawuti UNF UNC ANSI DIN931 DIN933 kupanga mtengo wathunthu
Kupanga Tsatanetsatane Wopanga Ubwino wa YC Background YC Principle Phukusi
