2026-08-15

Txojkev Pauj: Essential Components in Chemical Piping Systems

Lawv nrhiav tau tej phau ntsuag ntsuj zoo heev. Lawv nrhiav lub nroog nrhiav nrhiav kev tswj nrhiav nrhiav nrhiav nrhiav kev tswv. ( Ntawv Nkauj 11: 1 - 5) thiab lwm yam kev nyuaj siab. Tsis tas li ntawd xwb, lub ntsiab nrhiav tau npau taws.