3 The liner shall have flexural strength of not less than 14,000 psi.
3 The liner shall have flexural strength of not less than 14,000 psi.
内衬材料的抗弯力不少于14,000磅/平方英尺。
3 The liner shall have flexural strength of not less than 14,000 psi.
内衬材料的抗弯力不少于14,000磅/平方英尺。