Advanced PCBWay ruler-4 color

UNITED STATES OF AMERICA AUSTRALIA CANADA ITALY UNITED KINGDOM GERMANY SPAIN FRANCE SWITZERLAND NETHERLANDS, THE JAPAN POLAND TURKEY NEW ZEALAND MEXICO BRAZIL AFGHANISTAN ALBANIA ALGERIA AMERICAN SAMOA ANDORRA ANGOLA ANGUILLA ANTIGUA ARGENTINA ARMENIA ARUBA AUSTRIA AZERBAIJAN BAHAMAS BAHRAIN BANGLADESH BARBADOS BELARUS BELGIUM BELIZE BENIN BERMUDA BHUTAN BOLIVIA BONAIRE BOSNIA AND HERZEGOVINA BOTSWANA BRUNEI BULGARIA BURKINA FASO BURUNDI CAMBODIA CAMEROON CANARY ISLANDS, THE CAPE VERDE CAYMAN ISLANDS CENTRAL AFRICAN REPUBLIC CHAD CHILE CHINA, PEOPLES REPUBLIC COLOMBIA COMMONWEALTH NO. MARIANA ISLANDS COMOROS CONGO CONGO, THE DEMOCRATIC REPUBLIC OF COOK ISLANDS COSTA RICA COTE D IVOIRE CROATIA CUBA CURACAO CYPRUS CZECH REPUBLIC, THE DENMARK DJIBOUTI DOMINICA DOMINICAN REPUBLIC EAST TIMOR ECUADOR EGYPT EL SALVADOR ERITREA ESTONIA ETHIOPIA FALKLAND ISLANDS FAROE ISLANDS FIJI FINLAND FRENCH GUYANA French Polynesia GABON GAMBIA GEORGIA GHANA GIBRALTAR GREECE GREENLAND GRENADA GUADELOUPE GUAM GUATEMALA GUERNSEY GUINEA REPUBLIC GUINEA-BISSAU GUINEA-EQUATORIAL GUYANA (BRITISH) HAITI HONDURAS HONG KONG,China HUNGARY ICELAND INDIA INDONESIA IRAN (ISLAMIC REPUBLIC OF) IRAQ IRELAND, REPUBLIC OF ISRAEL JAMAICA JERSEY JORDAN KAZAKHSTAN KENYA KIRIBATI KOREA, REPUBLIC OF (SOUTH K.) KOREA, THE D.P.R OF (NORTH K.) KOSOVO KUWAIT KYRGYZSTAN LAO PEOPLES DEMOCRATIC REPUBLIC LATVIA LEBANON LESOTHO LIBERIA LIBYA LIECHTENSTEIN LITHUANIA LUXEMBOURG MACAU,China MADAGASCAR MALAWI MALAYSIA MALDIVES MALI MALTA MARSHALL ISLANDS MARTINIQUE MAURITANIA MAURITIUS MAYOTTE MICRONESIA, FEDERATED STATES OF MOLDOVA, REPUBLIC OF MONACO MONGOLIA MONTENEGRO, REPUBLIC OF MONTSERRAT MOROCCO MOZAMBIQUE MYANMAR NAMIBIA NAURU, REPUBLIC OF NEPAL NEVIS NEW CALEDONIA NICARAGUA NIGER NIGERIA NIUE NORTH MACEDONIA NORWAY OMAN PAKISTAN PALAU PALESTINE PANAMA PAPUA NEW GUINEA PARAGUAY PERU PHILIPPINES, THE PORTUGAL PUERTO RICO QATAR REUNION, ISLAND OF ROMANIA RUSSIAN FEDERATION RWANDA SAINT HELENA SAMOA SAN MARINO SAO TOME AND PRINCIPE SAUDI ARABIA SENEGAL SERBIA, REPUBLIC OF SEYCHELLES SIERRA LEONE SINGAPORE SLOVAKIA SLOVENIA SOLOMON ISLANDS SOMALIA SOMALILAND, REP OF (NORTH SOMALIA) SOUTH AFRICA SOUTH SUDAN SRI LANKA ST. BARTHELEMY ST. EUSTATIUS ST. KITTS ST. LUCIA ST. MAARTEN ST. VINCENT SUDAN SURINAME SWAZILAND SWEDEN SYRIA TAHITI TAIWAN,China TAJIKISTAN TANZANIA THAILAND TOGO TONGA TRINIDAD AND TOBAGO TUNISIA TURKS AND CAICOS ISLANDS TUVALU UGANDA UKRAINE UNITED ARAB EMIRATES URUGUAY UZBEKISTAN VANUATU VATICAN CITY STATE (HOLY SEE) VENEZUELA VIETNAM VIRGIN ISLANDS (BRITISH) VIRGIN ISLANDS (US) WALLIS AND FUTUNA ISLANDS YEMEN, REPUBLIC OF ZAMBIA ZIMBABWE