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Depend on of bottom of discharge  subcutaneous ulcer ton row?        How to conduct product certification of Chinese environment mark Issue date: 2002-7-20 origin: 1. Understand the cost decking materials in qatar product that is about to apply for first, have without attestation standard. If do not have, can look for Chinese environment to indicate secretariat of product certification committee is asked for " environmental mark sort suggests to express " . 2. If this product already had attestation level, what can seek advice to secretariat or secretariat accredit is medium center of development of technology of product of mark of pvc decking and fitting annulus beautiful environment is gotten " requisition of environmental mark product certification " , secretariat signs up for concerned material along with all the others after filling in. 3. After secretariat gets the application material of qualification of classics first trial, give out file examine and verify requisition and collect fees requisition, with application the unit signs formal attestation contract.preformed synthetic slate deck  4. Secretariat applies for written announcement the scene that the unit should complete to check pre-construction work, personnel of clique examine and verify goes to the spot examination, sample, be in charge of writing comprehensive