Quality Control

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  Secured Input Source: 01

  Secured Input Source: All materials must pass the quality checking, otherwise must be returned.
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  Reliable Components: 02

  Reliable Components: All bolts&nuts, gaskets and packing materials must be checked on the inbound.
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  High Standard of Melting Process: 03

  High Standard of Melting Process: Every forge of melted iron must go through the CE chemical analysis before the casting process.
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  Nodular Level Analysis: 04

  Nodular Level Analysis: All casted pieces must reach Nodular Level Grade 3(above 85%).
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  Metallographic Checking: 05

  Metallographic Checking: 100% double checked, 100% insurance of spheroidization.
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  Production Transaction Checking: 06

  Production Transaction Checking：all products must be personally checked by the engineers and workshop managers before transferring to next process.
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  Black Parts QC: 07

  Black Parts QC: Every single piece must pass black part QC checking, zero tolerance on sand holes.
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  Airtight Detection: 08

  Airtight Detection: Every piece of fittings shall be tested in the seal tests.
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  Dimension: 09

  Dimension：daily random checking，and sampling inspection of each production.
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  Mechanical Performance Examination: 10

  Mechanical Performance Examination: Random sampling based on CCCf, FM and UL standards, daily destructive pressure test(10 Mpa), stable hydraulic test and torque test must be performed.
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  Visual Checking of Coating: 11

  Visual Checking of Coating: piece by piece, delicate and professional.
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  6S Patrol Checking: 12

  6S Patrol Checking: as least 3 times of random sample checking by 6S patrol team per week.