AISI H13 4Cr5MoSiV1 Retained mandrel bars MPM mandrel bars Mandrel bar plays a crucial role in producing large diameter seamless pipes in modern industries. During producing, it has to bear strong and complic
tool and mould steels or tool and die steels or tool&mould steels ( QDYDT ) The products are mainly used for hot forging die, cold dies, plastic mould, mirror mould, die-casting mould, extrusion die, etc. Hot die steel: H13 ;
Large shaft-series forging parts ( forgings ) processing Qingdao YuTongDa Metal Materials Co., Ltd ( QDYTD )Qingdao YuTongDa Metal Materials Co., Ltd (QDYTD for short) is specialized in supplying all kinds of the forgings and castings for the metallurgy, mi
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