Zinc tus kheej tapping screws

Raws li kev ua lag luam hauv tsev thiab kev txhim kho txawv teb chaws yog peb txoj kev txhim kho ntawm cov khoom lag luam ntawm cov khoom lag luam Peb lub siab nrawm rau qhov loj me thiab lub koob npe nrov vim nws qhov kev mob siab rau cov kev daws teeb meem zoo thiab cov kev pabcuam zoo heev. Cov khoom yuav raug muag rau Tebchaws Europe, Australia thiab lwm qhov kev pabcuam hauv ntiaj teb thiab nrog peb cov kev pabcuam hauv ntiaj teb no koj yuav muaj lawv tus nqi them rau koj tus nqi them rau txhua lub sijhawm thiab lwm qhov chaw. Thiab vim tias Kayo cuam tshuam nyob rau hauv tag nrho cov specum ntawm cov cuab yeej tiv thaiv, peb cov neeg siv tsis xav tau nkim sijhawm kav ib puag ncig.