Automobile worm sleeve（蜗杆）
Jinghua Shaft Co.,ltd was founded in 2002,and it is specialized in production and sales of various types of micro shafts,hardware and other precision parts export-oriented companies.
Our factory specializes in manufacturing all kinds of stainless steel, carbon steel, alloy steel, high-strength, high-temperature and high-pressure, low-temperature and high-pressure, internal and external hexagon bolts, nuts, tooth bars, studs, stud bolts, and other special-shaped non-standard fasteners. Standards include: (GB) (American Society for Testing and Materials standard ASTM, ANSI/ASME) (German standard DIN) (chemical standard HG) (British standard BS) (international standard ISO), production bolt grades are: 8.8, 10.9, 12.9,GR5、GR8、A193Gr.B7、A193Gr.B7M、A320Gr.L7、A320Gr.L7M、A93Gr.B8、A193 Gr.B8M、A193Gr.B16and more. The grades of the nuts are: American Grade 5, American Grade 8, A194 2H, GR4, GR7, 8, 8M, 10, etc. Main series ASTMA307, A325, J429, A449, A490, A193, A194, A320, A574, F436 and more.
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