Ihe omume a na-anọchi ihe na ngwa eji eme ihe na efere, dochie eriri igwe na PET nkwakọ ngwaahịa, ma kwado ngwa ngwa pneumatic ma ọ bụ igwe eletriki iji meziwanye arụmọrụ nke efere. Ọ na-etinyere mmadụ mere ogwe, ọkara eriri mbadamba, njupụta mbadamba, particleboard, plywood, ụlọ formwork, iko-magnesium mbadamba, ọkụ na-àmà mbadamba, plasterboard na ndị ọzọ na ngwaahịa.