型号适用管径规格额定载荷(Short tons)BD23/823/850,75BD23/8EU23/8EUBD27/827/8BD27/8EU27/8EUBD31/231/2BD31/2EU31/2EUBD23/8(EU)ST(双头)23/8、23/8EUBD27/8(EU)ST(双头)27/8、27/8EUBD31/2(EU)ST(双头)31/2、31/2EU 标签: 吊卡 修井工具