... mouth, sewn bottom, square bottom and pinch bottom bag. Chemicals bag mainly supplies as valve, heat seal, open mouth, ... chemical industries as plastic resin, pigment, metallic addition, titanium dioxide, adhesive and many others...Technical Specifications:Width 180 mm ... to ultra strong, standard, extensible and high-porosity Kraft paper, and paper-pp woven laminated cloth, all are available. Poly- ...