Tongli Packaging Co., Ltd - #510, No.1 Building, Image Shidai Center, Zhengyang Road,Qingdao,Shandong, China P.C.:266109
Tongli Packaging © 2023
24
Aug
Penetration test to check tiny holes for standup pouch package
bag-making-process
When the bag is made on the bag-making machine, the edges will have to be well sealed to form ...