加拿大采购需求：塑料密封膜供应商、PET/AL/PE薄膜制造商、B2B塑料包装、工业密封膜、多层阻隔膜、散装塑料密封膜

I'm looking to place an order for around 50 rolls of sealing film, though the final quantity will depend on the shelf life of the product. We need a sealing film that can effectively seal both PP hard cups and paper cups. It's crucial that the film provides a reliable seal without any leakage issues. Could you please confirm if you have a suitable option for us? Additionally, it would be great if you could share details regarding the efficiency and durability of the sealing film. Understanding how well it performs in various conditions would help us make an informed decision. Looking forward to your prompt response!