Txhua tus menyuam yaus ua si lub tswv yim hauv tsev los ntawm SPIRIT tau pom zoo CE, ISO, SGS ntawv pov thawj.

Muaj ntau yam khoom ua si me nyuam yaus nkag tau hauv tsev. SPIRIT siv cov khoom lag luam zoo LLDPE yas, tshuab tshuab moulding

Thiab qhov ntawd yog qhov yooj yim heev los dhos cov me nyuam me ua si tom tsev los ntawm niam txiv.

SPIRIT muab tus nqi qis tshaj rau kev lag luam muag lag luam lossis kev sib xyaw ntawm kev lag luam mus sij hawm ntev.