Dab tsi yog tooj dag

Brass yog ib qho alloy uas muaj tooj liab thiab zinc. Brass uas muaj tooj liab thiab zinc yog hu ua tooj dag zoo tib yam. Yog hais tias nws yog tsim los ntawm ntau tshaj ob hom ntsiab lus, ntau yam alloys hu ua tooj dag tshwj xeeb. tooj dag muaj zog hnav tsis kam, tooj dag feem ntau siv rau hauv kev tsim cov li qub, cov kav dej, cov cua txias sab hauv thiab sab nraud txuas cov kav dej thiab cov radiators.

Yog tias koj muaj lus nug, thov hu rau peb. Peb lub tuam txhab tuaj yeem tsim ntau yam koob txhaj tshuaj, koob tshuaj kho mob, koob txhaj tshuaj, koob tshuaj hypodermic, koob txhaj tshuaj, koob tshuaj tiv thaiv kab mob, koob txhaj tshuaj, koob txhaj tshuaj, koob tshuaj tua tsiaj, koob xaum koob, koob ovum khaws koob, koob txhaj tshuaj, thiab lwm yam Yog tias koj xav tau kev kho. koob cov khoom, thov hu rau peb. Peb tos ntsoov rau koj qhov kev nug! Qhov zoo ntawm cov khoom tsim nyob rau hauv peb lub Hoobkas yuav txaus siab rau koj!

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