Hoʻohana nui ʻia nā mea pono lepo hao ʻole Hubless i loko o ka paipu wai ma o ka pilina pili. ʻO ka ʻaoʻao o loko a me waho o ka pā, ʻaʻohe hemahema o ka hale hana, hoʻokomo maʻalahi, mālama maʻalahi, ola lōʻihi, kōkua i ke kaiapuni, pale ahi a ʻaʻohe leo.
Ka uhi ʻana: ʻO loko a ma waho ka uhi pena Bituminous
Nui: 1.5″, 2″, 3″, 4″, 5″, 6″, 8″, 10″, 12″, 15″
Paipu Hao hina hina a me nā mea hoʻohui i nā mea kemika P<0.38 S<0.15 Cr<0.50 Ti<0.10 Al<0.50 Pb<0.015 C+(Si+P)/3 CE>4.10
Na Waiwai Mechanical Hao Hao >145Mpa