Kev hwm thiab kev tsim nyog
Lub tuam txhab tau txais A2- qib siab lub nkoj daim ntawv tso cai, A-level boiler manufacturing daim ntawv tso cai, pipeline siab haum daim ntawv tso cai, GB2 thiab GC2 pipeline installation daim ntawv tso cai, thiab dhau ISO9001 zoo tswj system ntawv pov thawj, thiab yeej lub high-tech enterprise ntawm Hebei Xeev.
