All contract cranes and associated rigging equipment will be inspected, maintained and operated in compliance with appropriate state regulations, current SECCO crane, slings and rigging procedures.
2
绳索式木材抓斗按起重机特性适配,常用类型有单索、双索和四索三种。
Mechanical timber grab is equipped according to the characteristic of crane, which could be divided into three species, that is single rope, double rope, and four rope.