常見例句雙語例句Top view of square head bolt.方頭螺釘?shù)念\眡圖。Side view of square head bolt with adjustable thread length.螺紋長度可調(diào)整的平頭一字槽螺釘?shù)膫?cè)麪圖。Mesh column connection with the use of semi-circular bolt head square neck, with anti-theft rings and washers, to prevent the separation can be artificially demolition.網(wǎng)片與立柱的連接採用半圓頭方頸螺栓，配以防盜墊圈，能防止隔離柵被人爲(wèi)地隨意拆卸。 返回 square head bolt