Ukubopha

Ukuchaneka kwemveliso kunye nokuchaneka kuphezulu, uxhulumaniso lwezinto eziphathekayo kunye ne-welding inokutywinwa ngokupheleleyo, kwaye ukubonakala kuhle; ineempawu zamandla aphezulu kunye nokhuseleko; ineplastiki elungileyo kunye nokuqina, kwaye inokumelana namandla amakhulu xa iphantsi kwamandla angaphandle.

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