璐甸??????/span>???绉?甯歌????峰集??澹????????搴︿???负1.6-3.0mm涔??达????㈤?澶?涓?20-350mm涔??淬????宸ユ????涓虹??涧(?锋?)锛?????????宸ユ??????GB50018-2002 ?ц???Z???㈤??甯稿??ㄥ?ㄥぇ???㈢??????夸腑????宸ラ?垮害??瀛?涓烘????宸ヨ?姹???浜с??
璐甸??????/span>??璁洪????
Z????/span>
h-楂?搴 Height
a-涓??胯竟? Mid Flange
a-灏??胯竟? Small Flange
t-??搴 Thickness