type b gb 3887 83 marine mushroom vent

{"cid":"91200016","title":"GB 3887 Type D Marine Mushroom Ventilator Marine Outfitting","imgUrl":"https:\/\/img.ismap.com\/nimg\/b1\/85\/b99a965f4bebdb860196eca8a20b-200x200-1.jpg","attrs":{"Price":"As per quotation","Brand Name":"Zhongyuan","Model Number":"Standard and Customized","Minimum Order Quantity":"1","Delivery Time":"As per offer","Place of Origin":"China","Certification":"CCS, NK, BV, ABS, DNV-GL, LR, KR, IRS, RS, RINA, Makers Test Certificate, Etc.","Packaging Details":"Pallet or Customized","Payment Terms":"TT, L\/C, Etc.","Supply Ability":"Satisfy clients needs","Technical Standard":"GB 3887-83","Type":"D","Nominal Size":"400-1200mm","Materials":"Mild Steel, Stainless Steel, Bronze, Copper","Surface treatment":"sandblasting to S2.5 + one layer of epoxy shop primer, Galvanized, Polished, customized surface treatment available.","Classification Certificates":"CCS, NK, BV, ABS, DNV-GL, LR, KR, IRS, RS, Etc."}}

{"cid":"91184247","title":"Marine type A internal opening and closing ventilator, mushroom vent head, mushroom ventilator","imgUrl":"https:\/\/img.ismap.com\/nimg\/05\/8b\/825f54ea767c726f5ee81a9f3ff4-200x200-1.jpg","attrs":{"Price":"USD700.00-USD3000.00","Brand Name":"FEI HANG","Model Number":"A,AS,B,BS","Minimum Order Quantity":"2PCS","Delivery Time":"3-5dys","Certification":"Factory certificate","Place of Origin":"Yangzhou, Jiangsu, China","Payment Terms":"T\/T","Supply Ability":"50PCS\/dsys","Packaging Details":"export package","Executive standard":"CB\/T3657-94","Material":"carbon steel, stainless steel","Nominal diameter":"32-150A","Flange standard":"PN6\/PN10"}}