The contractor shall seeking assistance from a qualified consultant office by the development projects center, and to submit his name and his statements for the owner's adoption.

承包商应该通过开发项目中心寻求一家合格的咨询办事处的协助，并提交其名称和有关它的说明，以供业主认可。

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To ensure proper operation, this valve must be installed by a qualified service technician or licensed plumbing contractor in accordance with these instructions and local plumbing codes and standards.

为确保设备安装正确性，本安全阀安装须由有资格证书的管道承包商或维修技术人员按照说明书及其他相应规定进行。

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Source qualified supplier & sub-contractor, and carry out supplier evaluation.

寻找有资质的供应商和承包商，并开展供应商评估工作。

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