He aha ka pono o ka wili paipu Erw?-ZTZG

Q: He aha nā mea maikaʻi o ka wili paipu ERW?
A: Ua ʻike ʻia nā wili paipu ERW no ko lākou kiʻekiʻe kiʻekiʻe, kumukūʻai kūpono, ʻano mānoanoa o ka paia, nā hana maʻemaʻe o ka ʻili, a me ka hiki ke hana i nā lōʻihi lōʻihi me ka ʻole o nā hono, kahi e kūpono ai no nā ʻano ʻoihana like ʻole.

I ka manawa like, hiki i nā mea hana a ZTZG ke hoʻokō i ka hiki ke hoʻololi i nā kikoʻī me ka ʻole o ka hoʻololi ʻana i nā molds.