日前,笔者在石家庄出差期间听到该市某单位门柱干挂的石材板突然掉落差点砸伤路人的事件。其主要原因是石材干挂件断裂,因此挂件属不合格的不锈钢产品,其“L”形的弯折角是用普通焊条焊接而成,非挤压成形接件,由于不锈钢板材经焊烧后退火和易于氧化,它的坚固性能大打折扣,使得挂件在累 Recently, I heard during a business trip in Shijiazhuang, a stone column suddenly hanging in the city door column almost dropped the incident hit the passers-by. The main reason is the stone dry pendant fracture, so the pendant is unqualified stainless steel products, the “L” -shaped bend angle is welded with ordinary electrode, non-extrusion molded parts, the stainless steel sheet by the post-combustion annealing and Easy to oxidize, its sturdy performance greatly reduced, making the pendant tired