The sheet for blister packaging is called hard sheet or film. Commonly used are: PET (polyethylene terephthalate) hard sheet, PVC (polyvinyl chloride) hard sheet, PS (polystyrene) hard sheet. PS hard sheet has low density, poor toughness, easy to burn, and produces styrene gas (hazardous gas) when burned, so it is generally used to produce various industrial plastic trays.
PVC hard sheet has moderate toughness, is not easy to burn, generates chlorine gas when burned, and has certain influence on the environment. PVC is easy to heat seal, and can be sealed by sealing machine and high frequency machine. It is the main raw material for producing transparent plastic products. PET hard sheet has good toughness, high transparency, easy to burn, no harmful gas when burning, and is an environmentally friendly material, but the price is high, suitable for high-grade plastic products. The blister bulbs in Europe and the United States generally require PET hard sheets, but It is not easy to heat seal, which brings great difficulty to the package. In order to solve this problem, people put a layer of PVC film on the PET surface and named it PETG hard film, but the price is higher.
Whether it`s commercial or residential use, outdoors or indoors, Port City Elevator can assist in eliminating the barrier that stairs can cause for people with limited mobility. As a cost-effective solution, platform lifts create convenient access without compromising architectural character.Goods lifts provide fast, efficient, convenient and safe access for goods to reach mezzanines, basements, and any levels in multi-storied buildings.Cargo lift is customizable in loading capacity, platform size, and lifting height for your individual requirements.
Construction Hoist Elevator,External Wall Elevator,Used Construction Elevator,Construction Material Elevator
Jinan Shanghangda Machinery Co., Ltd. , https://www.shdtowercrane.com