ddjs002@163.com

+8618803206030 （Tel/SKYPE）

Daduo Bolt Product

Daduo Bolt Product

There are more than 20 small ,medium and large production equipment. The main products are DIN standard ,ISO standard ,ASME standard,BS standard ,AS standard .

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+86 18803206030

ddjs002@163.com

Xiduanzhuang Village ,Yongnian,District,Handan City,Hebei Province, China.

WASHER

WASHER

Flat pad, flat pad is mainly stamped out with iron plate, the shape is generally a flat washer, with a hole in the middle.There is a calculation formula in the “Standard Fastener Quality Encyclopedia” published by China Standards Press. The formula is: Weight of one thousand pieces m=0.00785×{3.1416/4×washer height× [Square of outer circle diameter－square of inner hole diameter]}

key word:

隐藏域元素占位

WASHER

WASHER

Flat pad, flat pad is mainly stamped out with iron plate, the shape is generally a flat washer, with a hole in the middle.There is a calculation formula in the “Standard Fastener Quality Encyclopedia” published by China Standards Press. The formula is: Weight of one thousand pieces m=0.00785×{3.1416/4×washer height× [Square of outer circle diameter－square of inner hole diameter]}

key word:

隐藏域元素占位

WASHER

WASHER

Flat pad, flat pad is mainly stamped out with iron plate, the shape is generally a flat washer, with a hole in the middle.There is a calculation formula in the “Standard Fastener Quality Encyclopedia” published by China Standards Press. The formula is: Weight of one thousand pieces m=0.00785×{3.1416/4×washer height× [Square of outer circle diameter－square of inner hole diameter]}

key word:

隐藏域元素占位

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Welcome to Handan Daduo carriage bolt manufacturing factory！

+86 18803206030

ddjs002@163.com

Xiduanzhuang Village ,Yongnian,District,Handan City,Hebei Province, China.

+86 18803206030

+86 18803206030

2277357689@qq.com

2277357689@qq.com

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