1. Raws li cov neeg thov kev thov, peb tsim cov khoom siv cua sov ua los ntawm ntau yam khoom siv (stainless steel, PTFE, tooj liab, titanium, thiab lwm yam) thiab kev siv (kev lag luam, khoom siv hluav taws xob, immersion, cua, thiab lwm yam).
2. Muaj ntau ntau yam sib txawv kawg xaiv los ntawm.
3. Magnesium oxide tsuas yog siv rau hauv siab purity, thiab nws cov rwb thaiv tsev txhim kho cov cua sov hloov.
4. Txhua daim ntawv thov tuaj yeem siv cov tubular tso cua sov. Rau kev hloov hluav taws xob hloov hluav taws xob, cov tubular ncaj tuaj yeem muab tso rau hauv cov cav ntoo, thiab cov tubular zoo li muaj cov cua sov zoo ib yam hauv txhua hom kev thov tshwj xeeb.