大字型三角锁喉固定 Bridging arm triangle choke ; Bridging arm choke

十字型大厦 cruciform block ; cross-shaped block ; shaped block

双工字型大厦 double-H block ; twin-H block ; H block

双十字型大厦 double cruciform block

工字型大厦 H block

大字型三角学锁喉固定 bridging arm triangle choke

单座工字型大厦 single-H block ; H block

新十字型大厦 new cruciform block

弹性十字型大厦 flexi block