Nplaim yog tshwj xeeb rau kev txiav cov hlau tuab, zoo li 50mm-100mm siv cov pa oxygen thiab acetylene.Lub thickness yog loj tab sis qhov tseeb yog qis dua.
Post lub sij hawm: Sep-20-2019
Nplaim yog tshwj xeeb rau kev txiav cov hlau tuab, zoo li 50mm-100mm siv cov pa oxygen thiab acetylene.Lub thickness yog loj tab sis qhov tseeb yog qis dua.