bawuti pamapewa
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Hex bawuti mkulu mphamvu 4.8 6.8 8.8 10.9 12.9 muyezo kukula Zinc Plain Hex batani mutu bawuti UNF UNC ANSI DIN609 DIN610 GB27 kupanga mtengo wathunthu
Kupanga Tsatanetsatane Wopanga Ubwino wa YC Background YC Principle Phukusi
