how to write an invitation letter

{"cid":"91224051","title":"Vintage Kraft Paper Envelopes for Letter Writing Invitation Gift Card Packaging","imgUrl":"https:\/\/img.chinax.com\/nimg\/a1\/c9\/b3c738517a71aead6c7089507f3a-200x200-1.jpg","attrs":{"Price":"USD0.001~0.2\/PC","Brand Name":"DINUO","Minimum Order Quantity":"5000PCS","Delivery Time":"Negotiation","Certification":"ISO9001\uff1a2015\uff1bFSC certificate","Place of Origin":"Guangdong,China","Payment Terms":"T\/T, L\/C","Supply Ability":"10000000PCS per month","Packaging Details":"Standard export cartons or as customers'requirements","Product name":"Vintage Kraft Paper Envelopes","Material":"Kraft Paper, Art Textured Paper, Matte Paper","Color":"Brown, Black, White, Retro Red, Textured Pattern","Usage":"Mailing, Storage, Organizing, Gifting","Compatibility":"Fits standard letter size, card size, invitation size documents","Suitable For":"Letters, Greeting Cards, Wedding Invitations, Gift Cards, Stationery Storage","Printing":"Can be printed with custom designs logos or text supports hot stamping","Features":"Durable tear-resistant moisture-resistant retro textured design sturdy construction"}}

{"cid":"91191535","title":"Vintage Kraft Paper Envelopes For Letter Writing Invitation Gift Card Packaging","imgUrl":"https:\/\/img.chinax.com\/nimg\/a1\/c9\/b3c738517a71aead6c7089507f3a-200x200-1.jpg","attrs":{"Price":"US$0.08~US$0.25","Brand Name":"DINUO","Model Number":"CPPB-013","Minimum Order Quantity":"5000 Pcs","Delivery Time":"15 days","Certification":"SGS\/FSC\/ROHS\/ISO9001 : 2015","Place of Origin":"CHINA","Payment Terms":"L\/C, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"100000000 Piece\/Pieces per Month Free sample can be customized.","Packaging Details":"Safety Master Carton Package, 100pcs in one inner bag and 1000pcs in one carton box [based on the bag size , and one carton no more than 20KG, or custom package]","Product Name":"Vintage Kraft Paper Envelopes","Material":"Kraft Paper, Art Textured Paper, Matte Paper","Features":"Durable, Tear-resistant, Moisture-resistant, Retro Textured Design, Sturdy Construction","Color":"Brown, Black, White, Retro Red, Textured Pattern","Usage":"Mailing, Storage, Organizing, Gifting","Compatibility":"Fits Standard Letter Size, Card Size, Invitation Size Documents","Suitable For":"Letters, Greeting Cards, Wedding Invitations, Gift Cards, Stationery Storage","Printing":"Can Be Printed With Custom Designs Logos Or Text Supports Hot Stamping Product Description"}}

{"cid":"91196651","title":"Pantone Color Kids Writing Board With Hanging Hook","imgUrl":"https:\/\/img.chinax.com\/nimg\/b2\/1f\/d5d20fd6c5f88cce50e6bcb3e77f-200x200-1.jpg","attrs":{"Price":"$1-6\/Piece","Brand Name":"JM","Model Number":"Board","Minimum Order Quantity":"5000PCS","Delivery Time":"5-30 work days","Certification":"LFGB\/FDA\/Disney FAMA","Place of Origin":"China","Packaging Details":"1pc\/opp bag 20pcs\/ctn","Item":"Black Board","Material":"Tinplate+Wooden","Varnish":"Matt","Color":"Pantone Color as Custom"}}