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Harbin Rainbow Technology CO.,Ltd.
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  • 29 2022-08

    Introduction to standardized fasteners ​

    Standardized mechanical parts for fastening connections. Standard fasteners mainly include bolts, studs, screws, set screws, nuts, washers and rivets.

  • 29 2022-08

    Anchor bolt assembly machine

    This year, we sold anchor bolt assembly machines to Finland, Korea, Spain, India, And Turkey.

  • 29 2022-08

    Working principle of cold forging machine

    1.Purpose: to achieve the shape and length (or thickness) of semi-finished product by cold forging (or hot forging) of wire rod.

  • 29 2022-08

    The advantages of the cold header

    1.In motor overload or other abnormal situations, variable frequency protection action, guaranteed the safety of equipment

  • 27 2022-07

    Working principle of automatic cold header

    ​Modern automatic cold heading machine has been increased from the past simple two worktables location up to the present domestic newer varieties have 5 die 6 mold die long automatic cold heading machine using metal plastic....

  • 27 2022-07

    Characteristics of cold header

    1.The connection of crankshaft, body and impact connecting rod is made of high-wear-resistant alloy copper tile, with large bearing capacity, long service life and low maintenance cost.....


Company address:No. 1560-2 chuangxin 2nd road, songbei district, Harbin.