水泥杆脚扣产品编号型号模式额定负荷适用杆径(kg)(mm)HD077-01JKG-250定距150ф250HD077-02JKG-300定距150ф300HD077-03JKG-400定距150ф400HD077-04JKGD-300变距150ф900-ф300HD077-05JKGD-400变距150ф250-ф400HD077-06JKGD-500变距150ф350-ф500)