Kev Siv Cov Khoom Siv Hluav Taws Xob

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, nws yog hu ua tooj dag tshwj xeeb. Brass muaj zog hnav tsis kam, tooj dag feem ntau siv rau hauv kev tsim cov li qub, cov kav dej, cua txias sab hauv thiab sab nraud ntawm lub tshuab txuas cov yeeb nkab thiab lub tshuab hluav taws xob.

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 tshuaj biopsy, koob tshuaj tiv thaiv, 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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