Nke a na ngwá adopts pụrụ iche kehoraizin imewe, bụ anyị ụlọ ọrụ dị ka ọhụrụ mba ọkọlọtọ chọrọ nke nnyocha na mmepe nke a ọhụrụ ngwá, tumadi eji papermaking, plastic film, chemical eriri, aluminum foil mmepụta na ndị ọzọ na ụlọ ọrụ na ndị ọzọ mkpa iji chọpụta tensile. ike nke mmepụta ihe na ngalaba nyocha ngwaahịa.
1. Nyochaa ike ike, ike nkwụsị na mmiri mmiri nke akwụkwọ mposi
2. Mkpebi nke elongation, ogologo mgbaji, mgbaka ike ike, ntinye aka, ntinye ume ike, ike na-agbanwe agbanwe.
3. Measure ike peeling nke teepu nrapado