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Chinese high tensile bolts production process - heat treatment

Heat treatment workshop for high strength hex bolts

Hex bolts Grade8.8 10.9 12.9 black surface, zinc plated, HDG

Please have a look at our shop

Hot forged hex bolts production workshop

The two processes of bolt production are heat treatment and tread rolling

Chinese fastener factory

Loading container for stud bolts, threaded rod ASTM A193 B7

Chinese high tensile hex bolts factory in ningbo

Interesting, four people are producing one hex bolt

High tensile hex bolts made in China