Contact: Ge Yang 153 0 327 5 263 0317-7633263 QQ: 1871919129 forces create the lowest bit in the north in the packaging industry, high-quality, the Hebei fine Plastic Packaging Co., Ltd. has passed the QS and export certification. Putty powder bags, food bags, aluminum foil bags, vacuum bags, pesticide bags. 
 Quality inspection: 
 1, the product testing process by five inspection: full-time testing, inspection, self inspection, mutual inspection, all seized. 
 , Quality control of the main instruments: (1) tensile testing machine: the measured peel strength and heat seal strength of the composite membrane. 
 (2) heat sealing instrument: to make the heat seal curve, observed the relationship between seal strength and temperature of the composite membrane. 
 (3) gas chromatography: measurements of the composite membrane solvent residues.