你好律师，规范化的采购合同担保书怎么写？最好有范本。希望相关法律人士解答，谢谢了。

甲方：（供货方）＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    乙方：（需货方）＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                            
    丙方：（担保方）＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    丙方根据甲方与乙方在＿＿＿＿年＿＿月＿＿日签订的金额为＿＿＿＿＿＿＿的购销合同向甲方提供担保，担保合同从属于购销合同。                                                              
    
一、担保责任：                                                            
    
1、丙方是在＿＿＿＿＿＿＿＿＿＿＿注册登记的经济实体，任何改变丙方本身性质、地位的事件、事项发生或有可能发生时，丙方保证及时通知甲方和乙方。                                                              
    
2、丙方担保乙方完全适当履行本合同从属的购销合同，否则由丙方承担连带担保责任。                                                              
    
3、丙方的继承人（包括因改组合并而继承）将受本担保书的约束，并继续承担本担保项下的责任。未得到甲方事先书面同意，丙方不得转让其担保义务。                                                              
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4、保证期限：自本合同生效之日起二年。                                                            
    
二、违约责任：                                                              
    
1、乙方没有按约定的期限支付货款，甲方可要求丙方履行担保责任，丙方若对合同履行情况有异议可在接到甲方的付款通知书后一个星期内书面向甲方提出，否则视为无异义。                                                              
    
2、甲方发出付款通知书时应附带能证明乙方违反供销合同未按期支付货款的书面文件。                                                              
    
3、丙方承担连带责任，包括供销合同中约定的未履行货款以及供销合同所约定的违约利息、乙方中途退货的违约金，必须按照付款通知书规定的还款日期、金额、方式履行。如需延期，丙方在付款通知书所规定还款日（分期付款按首笔款项的还款日计算）到期前一星期提出延期申请，经甲方同意，办理延期手续，但延期最长不得超过原订期限的一半。                                                              
    
三、丙方代乙方清偿债务后，有权向乙方作相应追偿。                                                              
    
四、在本合同有效期内，任何一方不得擅自变更或解除本合同。需变更本合同条款时，应经三方协商同意，达成书面协议。                                                            
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五、本合同发生的争议，由甲、乙、丙三方当事人协商解决，协商不成，任何一                                                                                                                                  
    方起诉的，由甲方所在地人民法院管辖。                                                              
    
六、其它约定事项：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    
七、本担保书是无条件不可撤销的担保。丙方与任何其它方面签订的任何合同（协议或契约）均不影响本担保的真实性、有效性和合法性。                                                              
    
八、本合同一式四份，甲、乙、丙三方各存一份，＿＿＿＿＿＿＿＿公证处存一份。                                                              
    
九、本合同自三方当事人签字之日起生效。                                                                                                                              
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    甲方（印章）：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    授权代表（或委托代理人）（签字）： ＿＿＿＿＿＿＿＿＿                                                            
    单位地址：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    电话号码：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    ________年________月________日                                                                                                                              
    乙方（印章）：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    授权代表（或委托代理人）（签字）： ＿＿＿＿＿＿＿＿＿                                                              
    单位地址：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
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    电话号码：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                            
    ________年________月________日                                                                                                                              
    丙方（印章）：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    授权代表（或委托代理人）（签字）： ＿＿＿＿＿＿＿＿＿                                                              
    单位地址：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                              
    电话号码：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿                                                            
    ________年________月________日                                                              
    合同签订地点：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿