Two plants: Houjie (Dongguan) ยท Zhenlong (Huizhou) 30 Years in Precision Metal Fabrication
Sales Hotline +86 18680086358 ๐Ÿ“ง fusiyouxiang@outlook.com
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Product Categories & Core Processes

From drawing review and prototyping to mass production, Sisheng completes every key process for metal structural parts inside its own two plants โ€” balancing precision quality with dependable lead times.

Product Categories

Four Product Categories

Covering the main forms of metal structural parts, with full OEM / ODM customization.

Metal enclosures and housings

Metal Enclosures & Housings

Energy-storage cabinets, control boxes, IDC racks and other large housings โ€” balancing load-bearing strength and appearance quality.

  • Sheet-metal welding + surface finishing delivered together
  • Stable dimensions, smooth assembly
  • Custom non-standard designs supported
Sheet-metal structural parts

Sheet-Metal Structural Parts

Laser-cut, CNC-bent and press-formed stainless steel / aluminum brackets, mounting plates and connecting structures.

  • Thin-sheet bending and forming
  • Accurate hole positions, high consistency
  • From small-batch prototypes to volume
Precision machined parts

Precision Machined Parts

CNC turned and milled shafts, gears, flanges and clamping rings with controllable tolerances, including difficult custom shapes.

  • Turn-mill combined machining
  • Controllable tolerances, excellent surface
  • Robot joints and other challenging parts
Height-adjustable desk structures

Height-Adjustable Desk Structures

Electric and manual desk frames, legs, crossbeams and hardware parts, powder-coated as one assembly and supplied in volume.

  • Complete frame assemblies
  • Multiple coating colors
  • Support for height-adjustable equipment makers
Core Processes

Five Core Processes, Fully In-House

No need to coordinate several suppliers โ€” Sisheng completes the key processes from raw material to finished part under one roof.

CNC Precision Machining

Turn-mill machining centers producing shafts, gears, flanges and custom high-precision parts.

Equipment: CNC machining centers / CNC lathes

Press Forming

High-speed blanking, punching and forming for brackets, mounting plates and housings.

Equipment: Punch presses / decoilers

Aluminum Die Casting

One-piece die casting for housing parts, reducing assembly steps and improving structural strength.

Process: die casting + post-processing

Laser Tube Cutting

High-precision cutting and hole-making for round and square tubes, ideal for frames and structures.

Equipment: Laser tube cutting machine

Robotic Welding

Automated welding of large frames and structures with consistent beads and controlled distortion.

Equipment: Welding robots
How We Work

From Drawing to Mass Production

Four steps, all in-house โ€” lower communication overhead and more predictable lead times.

1

Requirement Review

Confirm drawings, material, surface finishing and quantity

2

DFM Evaluation

Design-for-manufacturing review to catch interference and tolerance issues early

3

Prototyping

Fast samples with full dimensional and assembly inspection

4

Mass Production

Combined capacity of two plants, stable delivery for volume orders

Why Sisheng

Why Choose Sisheng

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Two Plants, Full Process Chain

Houjie (Dongguan) and Zhenlong (Huizhou) working together, covering all five processes โ€” no multiple suppliers to manage.

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Prototype to Volume in One Place

From drawing review and samples to mass production, with predictable lead times.

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Flexible AND High-Volume

Supporting both low-volume flexible orders and high-volume capacity at the same time.

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30 Years of Quality

Long-term supplier to hundreds of equipment makers and new-energy manufacturers.

Send Your Drawings, Get a Tailored Quote

Share your 3D/2D drawings, material, surface finishing and quantity โ€” we will reply with an evaluation and quotation within 24 hours.

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