Kev Paub

Hauv kev txhim kho kev lag luam tshiab, kev lag luam yog ib qho tseem ceeb ntawm cov txheej txheem tsim khoom. Hauv kev lag luam zaj duab xis tshuab t

cause of issue: ① The type of resin raw material required for the production of the film blowing machine is wrong, and it is not a film-blown low-dens

cause of issue: ① The extrusion temperature of the film blowing machine is low, and the resin plasticization is poor, resulting in poor transparency o