Tshuab mould tseem hu ua cav ntoo, moulding, ua cov txheej txheem tsim kho sai sai. Tshem tawm kev siv tshuab pib siv los ua kom tsis tshua muaj kab mob polyethylene hwj thaum lub sij hawm Ntiaj Teb Tsov Rog Thoob Ntiaj Teb thaum xyoo 1950. Nrog rau lub siab ntawm lub siab ntom polyethylene thiab kev loj hlob ntawm tshuab moulding tshuab tshuab molding tshuab tau lug siv.Tus ntim ntawm hollow thawv tuaj txog txhiab tus liters, qee cov khoom tau raug tswj los ntawm lub computer.Plastics haum rau tshuab molding muaj xws li polyethylene, polyvinyl chloride, polypropylene, polyester thiab hais txog, uas yog lug siv li ntim industrial ntim.Raws li tus qauv ntawm kev txiav cov billet, tshuab molding tau faib ua extrusion tshuab molding thiab txhaj tshuab molding.