mtedza wa flange
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Hex nati mkulu mphamvu 4.8 6.8 8.8 10.9 12.9 muyezo kukula Zinc Plain hex flange nati UNF UNC ANSI DIN6923 DIN6926 A2 70 A4 80 kupanga mtengo wathunthu
Kupanga Tsatanetsatane Wopanga Ubwino wa YC Background YC Principle Phukusi
